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A non-scientific though worthy link/reference, if someone can find an appropriate external link;
In Star Trek IV, Scotty is faced with the logistical challenge of physically moving 2 20th-century whales. He poses as a Professor from a Scottish University and informs an engineer on how to manufacture the 24th-century innovation of "transparent aluminium".
Your edits to Transparent_alumina here contain material taken from here, here, and here, among others. As someone who claims to be a professor, do you really not know that posting this material on Wikipedia is unethical and against the rules here?—Preceding unsigned comment added by Glengarry ( talk • contribs)
1) In the first description of the absence of a definition for the term "transparent", I may have initially stayed too close to the author's original text. But the thing that I really don't understand here is that I decided on my own to remove that material completely from the article (in its entirety) over a month ago !
Please note that in the case that material was still posted there, I would be happy to completely re-phrase that section -- or even remove it in its entirety if that were necessary for Wikipedia approval. I am not looking for a fight here. I am looking for a quality product.
2) It would appear that the second reference (to an extremely brief website on transparent ceramics) is virtually unfounded. There is nothing there that is not more thoroughly covered on related websites.
3) In the third case of an Internet article on a "Simple Route to Nd:YAG Transparent Ceramics", I am certain that I cited a fair amount of data from that article, and referenced it clearly. Again, whatever material you feel needs to be re-phrased (or even omitted), I am completely negotiable to.
It is not my intention to plagiarize ideas and concepts from other authors. With an extensive background in the field (I have been following the development of transparent ceramics since the development of Sol-gel technology in the mid-80's) it is my most sincere goal to highlight for Wikipedia readers the cutting edge of this field through extensive searching of the literature. If my pen or keyboard gets too close to theirs at times, I wish to express my most heartfelt regrets and apologies. But try not to punish our readers for my occasional indiscretion. If the work needs to rephrased, then that can readily be done at any time. That way, the bulk of the best avaiable current information still gets to our audience. :-)
I would recommend guarding against the limiting of creative presentation of fundamental scientific ideas and concpets, based on issues of territorialism and personal agendas. It is obvious in this case that the author does not appreciate any or all of my work, since it has been removed from the article in its entirety. A 21 kB article has now been reduced back to 7 kB -- simply because that author is not willing to compromise or accept the work of an experienced colleague. Therefore, I have republished my changes to the article on Transparent alumina here. Please feel free to review and advise. -- logger9 ( talk) 20:29, 6 May 2009 (UTC)
We currently have five pictures in this article, and none of them actually shows a transparent ceramic. Are there really no photos available? In any case, what we have now comes across as a bit "image desperate", maybe it would be better to cut out a couple. 186.105.157.139 ( talk) 12:55, 29 May 2010 (UTC)
I really do wish that you could refrain from immediately deleting my contributions to this article. The image I added of a high powered Nd:YAG laser is directly related to this material, especially as it is a prime example of a transparent ceramic (yttria-alumina). In that spirit, I am re-posting my recent edits/additions to the article. logger9 ( talk) 03:55, 28 June 2010 (UTC)
<indent>As far as I know, the material form of commercial laser rods is still called "crystal" or "glass", and when the word "ceramic(s)" is used, it implies polycrystals (sintered or not is not an issue). Thus reliable references please, either on that "laser crystals are called ceramics" or that "(polycrystalline) ceramic lasers" are an active commercial application. Materialscientist ( talk) 06:37, 29 June 2010 (UTC)
There is an increasing number of applications in which it is necessary or desirable to have single-crystal ceramics because of special optical....properties.
Single crystals of a variety of materials are now being manufactured, either to replace natural crystals which are unavailable or for their own unique properties. Ruby and garnet laser crystals and sapphire tubes and substrates are grown from a melt. Large quartz crystals are grown by a hydrothermal process.
because
I was reading the "Future" section and it sounded very much like advertising or PR, so I followed the citations (to, e.g., http://business.highbeam.com/413107/article-1G1-84255397/transparent-alumina-ceramic-developed) and found the text copied almost verbatim from the outside sources. It should be noted that the sites I found clearly claim Copyright/All Rights Reserved, so absent any extenuating information it certainly seems like this copying is impermissible.
Furthermore, the tone ("literally invisible" etc.) seems inappropriate for WP. So unless there are objections, I think the best approach is to just delete the section in question and start anew.
Thoughts/objections? shultzc ( talk) 21:04, 15 January 2011 (UTC)
Most of the the photos (or all of the photos) in this article were published without specific connection to "transparent ceramics". The only connection between these photos and "transparent ceramics" is this article. The sources of these photos do not explicitly connect the subject of this article to the subject of the photo. This appears to be synthesis WP:SYN. If the sources do not connect the images to "transparent ceramics" then that seems to be an original, and unsourced use of the photos. On the other hand, some of the captions clearly point to the fact that these are simply off topic. I am looking for some relevant images. Steve Quinn ( talk) 03:22, 4 July 2011 (UTC)
Another problem with the laser image under 'crystals' is that it is referred to "...as large as a football field". Is that an American football field or a 'soccer' field? Please, can we use meters/yards/feet in lieu of FFs or stories/storys: reserve those units for use on the Discovery Channel. LorenzoB ( talk) 19:24, 26 August 2012 (UTC)
Hello, this is a super interesting article! The word "spinel" is used a few times. I know nothing about ceramics as I would imagine many people reading the article. Could someone include the definition of the word "spinel" so that the article is even clearer? ty 173.180.7.3 ( talk) 10:48, 16 October 2013 (UTC)BeeCier
The first, long paragraph of the Thermography section duplicates a paragraph in Thermography, and it has nothing to do with this article. I linked the main article and cut the paragraph. The material still remaining in this section is still about 90% off topic.
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The article has a section titled "missiles" with picture of a US airplane wielding an AIM-9 sidewinder missile, with a caption of "Place of origin: United States." However the only reference to missiles in the entire article is the that missiles use infrared optics, which are transmissible through transparent ceramics. I believe this image should be removed. — Preceding unsigned comment added by 63.241.111.230 ( talk) 19:32, 11 January 2018 (UTC)
this section seems way over bloated.
Storytelling like "Finally, the components were returned to Livermore for coating and testing" and "One Japanese/East Indian consortium has focused" are imho not at all encyclopedical.
Weasel word descriptions like "exceptional optical quality and properties" and "studies suggest overall improvement in absorption and emission" and "revealed an excellent optical quality with low pore volume and narrow grain boundary width" should not remain in the article.
The whole subsection seems to be summarizeable in one or two (still rather general, but at least shortened) statements like "Fluorescence and Raman measurements reveal that the Nd3+ doped YAG nanomaterial is comparable in quality to its single-crystal counterpart in both its radiative and non-radiative properties".
Please, if you are involved in editing this article, consider the above and delete 90% of the useless chatter in this subsection. 89.134.199.32 ( talk) 21:39, 17 August 2018 (UTC).
This article should be made clearer and more succinct by deleting information that does not belong here, as it already exists in other wiki pages (or should).
One example being....
The first working laser was made by Theodore H. Maiman in 1960 at Hughes Research Laboratories in Malibu, who had the edge on other research teams led by Charles H. Townes at Columbia University, Arthur Schawlow at Bell Labs, and Gould at TRG (Technical Research Group). Maiman used a solid-state light-pumped synthetic ruby to produce red laser light at a wavelength of 694 nanometers (nm). Synthethic ruby lasers are still in use.[17} — Preceding unsigned comment added by 60.240.181.62 ( talk) 07:30, 2 January 2019 (UTC)
This article is rated C-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | ||||||||||||||||||||||||||||||||||||||||||||||||
|
A non-scientific though worthy link/reference, if someone can find an appropriate external link;
In Star Trek IV, Scotty is faced with the logistical challenge of physically moving 2 20th-century whales. He poses as a Professor from a Scottish University and informs an engineer on how to manufacture the 24th-century innovation of "transparent aluminium".
Your edits to Transparent_alumina here contain material taken from here, here, and here, among others. As someone who claims to be a professor, do you really not know that posting this material on Wikipedia is unethical and against the rules here?—Preceding unsigned comment added by Glengarry ( talk • contribs)
1) In the first description of the absence of a definition for the term "transparent", I may have initially stayed too close to the author's original text. But the thing that I really don't understand here is that I decided on my own to remove that material completely from the article (in its entirety) over a month ago !
Please note that in the case that material was still posted there, I would be happy to completely re-phrase that section -- or even remove it in its entirety if that were necessary for Wikipedia approval. I am not looking for a fight here. I am looking for a quality product.
2) It would appear that the second reference (to an extremely brief website on transparent ceramics) is virtually unfounded. There is nothing there that is not more thoroughly covered on related websites.
3) In the third case of an Internet article on a "Simple Route to Nd:YAG Transparent Ceramics", I am certain that I cited a fair amount of data from that article, and referenced it clearly. Again, whatever material you feel needs to be re-phrased (or even omitted), I am completely negotiable to.
It is not my intention to plagiarize ideas and concepts from other authors. With an extensive background in the field (I have been following the development of transparent ceramics since the development of Sol-gel technology in the mid-80's) it is my most sincere goal to highlight for Wikipedia readers the cutting edge of this field through extensive searching of the literature. If my pen or keyboard gets too close to theirs at times, I wish to express my most heartfelt regrets and apologies. But try not to punish our readers for my occasional indiscretion. If the work needs to rephrased, then that can readily be done at any time. That way, the bulk of the best avaiable current information still gets to our audience. :-)
I would recommend guarding against the limiting of creative presentation of fundamental scientific ideas and concpets, based on issues of territorialism and personal agendas. It is obvious in this case that the author does not appreciate any or all of my work, since it has been removed from the article in its entirety. A 21 kB article has now been reduced back to 7 kB -- simply because that author is not willing to compromise or accept the work of an experienced colleague. Therefore, I have republished my changes to the article on Transparent alumina here. Please feel free to review and advise. -- logger9 ( talk) 20:29, 6 May 2009 (UTC)
We currently have five pictures in this article, and none of them actually shows a transparent ceramic. Are there really no photos available? In any case, what we have now comes across as a bit "image desperate", maybe it would be better to cut out a couple. 186.105.157.139 ( talk) 12:55, 29 May 2010 (UTC)
I really do wish that you could refrain from immediately deleting my contributions to this article. The image I added of a high powered Nd:YAG laser is directly related to this material, especially as it is a prime example of a transparent ceramic (yttria-alumina). In that spirit, I am re-posting my recent edits/additions to the article. logger9 ( talk) 03:55, 28 June 2010 (UTC)
<indent>As far as I know, the material form of commercial laser rods is still called "crystal" or "glass", and when the word "ceramic(s)" is used, it implies polycrystals (sintered or not is not an issue). Thus reliable references please, either on that "laser crystals are called ceramics" or that "(polycrystalline) ceramic lasers" are an active commercial application. Materialscientist ( talk) 06:37, 29 June 2010 (UTC)
There is an increasing number of applications in which it is necessary or desirable to have single-crystal ceramics because of special optical....properties.
Single crystals of a variety of materials are now being manufactured, either to replace natural crystals which are unavailable or for their own unique properties. Ruby and garnet laser crystals and sapphire tubes and substrates are grown from a melt. Large quartz crystals are grown by a hydrothermal process.
because
I was reading the "Future" section and it sounded very much like advertising or PR, so I followed the citations (to, e.g., http://business.highbeam.com/413107/article-1G1-84255397/transparent-alumina-ceramic-developed) and found the text copied almost verbatim from the outside sources. It should be noted that the sites I found clearly claim Copyright/All Rights Reserved, so absent any extenuating information it certainly seems like this copying is impermissible.
Furthermore, the tone ("literally invisible" etc.) seems inappropriate for WP. So unless there are objections, I think the best approach is to just delete the section in question and start anew.
Thoughts/objections? shultzc ( talk) 21:04, 15 January 2011 (UTC)
Most of the the photos (or all of the photos) in this article were published without specific connection to "transparent ceramics". The only connection between these photos and "transparent ceramics" is this article. The sources of these photos do not explicitly connect the subject of this article to the subject of the photo. This appears to be synthesis WP:SYN. If the sources do not connect the images to "transparent ceramics" then that seems to be an original, and unsourced use of the photos. On the other hand, some of the captions clearly point to the fact that these are simply off topic. I am looking for some relevant images. Steve Quinn ( talk) 03:22, 4 July 2011 (UTC)
Another problem with the laser image under 'crystals' is that it is referred to "...as large as a football field". Is that an American football field or a 'soccer' field? Please, can we use meters/yards/feet in lieu of FFs or stories/storys: reserve those units for use on the Discovery Channel. LorenzoB ( talk) 19:24, 26 August 2012 (UTC)
Hello, this is a super interesting article! The word "spinel" is used a few times. I know nothing about ceramics as I would imagine many people reading the article. Could someone include the definition of the word "spinel" so that the article is even clearer? ty 173.180.7.3 ( talk) 10:48, 16 October 2013 (UTC)BeeCier
The first, long paragraph of the Thermography section duplicates a paragraph in Thermography, and it has nothing to do with this article. I linked the main article and cut the paragraph. The material still remaining in this section is still about 90% off topic.
Hello fellow Wikipedians,
I have just modified 2 external links on Transparent ceramics. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
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The article has a section titled "missiles" with picture of a US airplane wielding an AIM-9 sidewinder missile, with a caption of "Place of origin: United States." However the only reference to missiles in the entire article is the that missiles use infrared optics, which are transmissible through transparent ceramics. I believe this image should be removed. — Preceding unsigned comment added by 63.241.111.230 ( talk) 19:32, 11 January 2018 (UTC)
this section seems way over bloated.
Storytelling like "Finally, the components were returned to Livermore for coating and testing" and "One Japanese/East Indian consortium has focused" are imho not at all encyclopedical.
Weasel word descriptions like "exceptional optical quality and properties" and "studies suggest overall improvement in absorption and emission" and "revealed an excellent optical quality with low pore volume and narrow grain boundary width" should not remain in the article.
The whole subsection seems to be summarizeable in one or two (still rather general, but at least shortened) statements like "Fluorescence and Raman measurements reveal that the Nd3+ doped YAG nanomaterial is comparable in quality to its single-crystal counterpart in both its radiative and non-radiative properties".
Please, if you are involved in editing this article, consider the above and delete 90% of the useless chatter in this subsection. 89.134.199.32 ( talk) 21:39, 17 August 2018 (UTC).
This article should be made clearer and more succinct by deleting information that does not belong here, as it already exists in other wiki pages (or should).
One example being....
The first working laser was made by Theodore H. Maiman in 1960 at Hughes Research Laboratories in Malibu, who had the edge on other research teams led by Charles H. Townes at Columbia University, Arthur Schawlow at Bell Labs, and Gould at TRG (Technical Research Group). Maiman used a solid-state light-pumped synthetic ruby to produce red laser light at a wavelength of 694 nanometers (nm). Synthethic ruby lasers are still in use.[17} — Preceding unsigned comment added by 60.240.181.62 ( talk) 07:30, 2 January 2019 (UTC)