Fake diamonds help jet engines run faster


	Fake diamonds help jet engines run faster

pokkets

4-1-2008 5:10 AM

347 views

pokkets says:

An aircraft engineer at General Electric, Ben Nagaraj, said that there have been no in flight failures of the kind this Zirconia coating would have stop, but that it's use may allow burning of engines at higher temperatures, saving fuel, and increasing speed.

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/5d73b78c-9540-49d2-8068-4f1ccd2a693e/B34236A6-96A8-4CA9-B5BA-AEA56E03AA25/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.abc.net.au/science/articles/2008/04/01/2204939.htm?site=science&topic=latest" href="http://www.abc.net.au/science/articles/2008/04/01/2204939.htm?site=science&topic=latest" style="font-size: 11px;">www.abc.net.au</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.abc.net.au/science/articles/2008/04/01/2204939.htm?site=science&topic=latest"> Eric Bland</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.abc.net.au/science/articles/2008/04/01/2204939.htm?site=science&topic=latest"><P class="first">Coating jet engines with paint containing zirconia may help them burn hotter and cleaner, US scientists say.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.abc.net.au/science/articles/2008/04/01/2204939.htm?site=science&topic=latest"><div align="center"><img src="http://content9.clipmarks.com/blog_cache/www.abc.net.au/img/59633B14-9253-4694-B490-FEBA4FBA8052" alt="jet turbine under maintenance" /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.abc.net.au/science/articles/2008/04/01/2204939.htm?site=science&topic=latest"><P>The zirconia, similar to cubic zirconia found in fake diamonds, is designed to coat turbine blades and stop sand from damaging the engines.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.abc.net.au/science/articles/2008/04/01/2204939.htm?site=science&topic=latest"><P>This makes them run faster, more fuel efficient and longer lasting, the <A target="_blank" href="http://www.osu.edu/">Ohio State University</A> researchers say.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.abc.net.au/science/articles/2008/04/01/2204939.htm?site=science&topic=latest"><P>The temperature extremes inside the engine can cause it to expand and contract like an accordion. A special coating of zirconia dioxide inside already protects engines as they heat up and cool.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.abc.net.au/science/articles/2008/04/01/2204939.htm?site=science&topic=latest"><P>The new coating adds aluminium and titanium to the zirconia on the outside blades.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.abc.net.au/science/articles/2008/04/01/2204939.htm?site=science&topic=latest"><P>As unwanted sand is sucked into the engine, the extremely high temperatures cause it to melt into hot glass.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.abc.net.au/science/articles/2008/04/01/2204939.htm?site=science&topic=latest"><P>"As the hot glass penetrates the coating, there is now a reservoir of titanium and aluminum, which crystallises the glass," says Padture.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.abc.net.au/science/articles/2008/04/01/2204939.htm?site=science&topic=latest"><P>"Once it's a crystal, it halts its progress into the engine."</P></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/B34236A6-96A8-4CA9-B5BA-AEA56E03AA25/blog/" title="blog or email this clip"><img src="http://content6.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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