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<DIV><FONT face=Arial>Dear Paul</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Why not start with simple mild steel screen, of various
sizes, and test them to see how long they last?</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Exotic materials will probably last longer, but at a very
much higher cost. </FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Once you have cost and "lifetime" information, then you
can make the best decision about what materials to use.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Best wishes,</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Kevin</FONT></DIV>
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style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px"
dir=ltr>
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=paul.olivier@esrla.com href="mailto:paul.olivier@esrla.com">Paul
Olivier</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=stoves@lists.bioenergylists.org
href="mailto:stoves@lists.bioenergylists.org">Discussion of biomass cooking
stoves</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, March 06, 2012 12:12
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [Stoves] the 150 gasifier in
operation in Vietnam</DIV>
<DIV><BR></DIV>446 stainless can handle temperatures as high as 1,200
C.<BR>Silicon carbide is quite cheap, and it can handle temperatures as high
as 1,650 C.<BR><A
href="http://accuratus.com/silicar.html">http://accuratus.com/silicar.html</A><BR><BR>Thanks.<BR>Paul<BR><BR>
<DIV class=gmail_quote>On Tue, Mar 6, 2012 at 11:02 AM, Anand Karve <SPAN
dir=ltr><<A
href="mailto:adkarve@gmail.com">adkarve@gmail.com</A>></SPAN> wrote:<BR>
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style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex"
class=gmail_quote>
<DIV>Dear Paul,</DIV>
<DIV>I have not worked with that grade of stainless steel and also not
worked with silicon carbide mesh.</DIV>
<DIV>Yours</DIV>
<DIV>A.D.Karve<BR><BR></DIV>
<DIV class=HOEnZb>
<DIV class=h5>
<DIV class=gmail_quote>On Tue, Mar 6, 2012 at 11:58 AM, Paul Olivier <SPAN
dir=ltr><<A href="mailto:paul.olivier@esrla.com"
target=_blank>paul.olivier@esrla.com</A>></SPAN> wrote:<BR>
<BLOCKQUOTE
style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex"
class=gmail_quote>A.D.,<BR><BR>I am looking for a 446 stainless steel wire
mesh.<BR>Have you ever worked with silicon carbide mesh?<BR>It is used as
an emitter in thermophotovoltaics.<BR><BR>Paul<BR><BR>
<DIV class=gmail_quote>On Tue, Mar 6, 2012 at 10:54 AM, Anand Karve <SPAN
dir=ltr><<A href="mailto:adkarve@gmail.com"
target=_blank>adkarve@gmail.com</A>></SPAN> wrote:<BR>
<BLOCKQUOTE
style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex"
class=gmail_quote>
<DIV>Dear Paul,</DIV>
<DIV>even stainless steel is no good. At high temperature, it corrodes
and crumbles into pieces.</DIV>
<DIV>Yours</DIV>
<DIV>A.D.Karve<BR><BR></DIV>
<DIV class=gmail_quote>
<DIV>
<DIV>On Mon, Mar 5, 2012 at 4:03 PM, Steve Taylor <SPAN dir=ltr><<A
href="mailto:steve@thetaylorfamily.org.uk"
target=_blank>steve@thetaylorfamily.org.uk</A>></SPAN>
wrote:<BR></DIV></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex"
class=gmail_quote>
<DIV>
<DIV><BR><BR>
<DIV class=gmail_quote>On 5 March 2012 02:56, Paul Olivier <SPAN
dir=ltr><<A href="mailto:paul.olivier@esrla.com"
target=_blank>paul.olivier@esrla.com</A>></SPAN> wrote:<BR>
<BLOCKQUOTE
style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex"
class=gmail_quote><BR>I know that a tungsten wire mesh
exists.<BR>But no doubt this would be too
expensive.<BR><BR></BLOCKQUOTE>
<DIV><BR>Tungsten will oxidise to nothing very quickly. Probably
Incoloy would be ideal<BR><FONT
color=#888888><BR>Steve<BR></FONT></DIV></DIV>
<DIV></DIV><BR></DIV></DIV>
<DIV>_______________________________________________<BR>Stoves mailing
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color=#888888><BR><BR clear=all><BR>-- <BR>***<BR>Dr. A.D.
Karve<BR>Trustee & Founder President, Appropriate Rural Technology
Institute
(ARTI)<BR><BR><BR></FONT></SPAN><BR>_______________________________________________<BR>Stoves
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color=#888888><BR><BR clear=all><BR>-- <BR>Paul A. Olivier PhD<BR>27C Pham
Hong Thai Street<BR>Dalat<BR>Vietnam<BR><BR>Louisiana telephone:
1-337-447-4124 (rings Vietnam)<BR>Mobile: 090-694-1573 (in
Vietnam)<BR>Skype address: Xpolivier<BR><A href="http://www.esrla.com/"
target=_blank>http://www.esrla.com/</A><BR></FONT><BR>_______________________________________________<BR>Stoves
mailing list<BR><BR>to Send a Message to the list, use the email
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target=_blank>http://www.bioenergylists.org/</A><BR><BR><BR></BLOCKQUOTE></DIV><BR><BR
clear=all><BR>-- <BR>***<BR>Dr. A.D. Karve<BR>Trustee & Founder
President, Appropriate Rural Technology Institute
(ARTI)<BR><BR><BR></DIV></DIV><BR>_______________________________________________<BR>Stoves
mailing list<BR><BR>to Send a Message to the list, use the email
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more Biomass Cooking Stoves, News and Information see our web
site:<BR><A href="http://www.bioenergylists.org/"
target=_blank>http://www.bioenergylists.org/</A><BR><BR><BR></BLOCKQUOTE></DIV><BR><BR
clear=all><BR>-- <BR>Paul A. Olivier PhD<BR>27C Pham Hong Thai
Street<BR>Dalat<BR>Vietnam<BR><BR>Louisiana telephone: 1-337-447-4124 (rings
Vietnam)<BR>Mobile: 090-694-1573 (in Vietnam)<BR>Skype address:
Xpolivier<BR><A href="http://www.esrla.com/"
target=_blank>http://www.esrla.com/</A><BR>
<P>
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<P align=left color="#000000" avgcert??>No virus found in this
message.<BR>Checked by AVG - <A
href="http://www.avg.com">www.avg.com</A><BR>Version: 2012.0.1913 / Virus
Database: 2114/4852 - Release Date: 03/05/12</P></BLOCKQUOTE></BODY></HTML>