ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
ZrW2O8 was successfully synthesized via combustion method with(NH4)5H5[H2(WO4)6] ·H2O, ZrOCl2·8H2O, H3BO3, (NH2)2CO and HNO3. The best prescription ofcombustion synthesizing of ZrW2O8 was obtained. The linear thermal expansion coefficient ofsynthesized ZrW2O8 is -5.08×10-6oC-1 in the temperature range of 50-600oC. Different weight ratiosof ZrW2O8 and ZrO2 were taken into account. Al2O3 was added into the composite during sinteringto increase the density of the composites. When the weight ratio of ZrO2 to ZrW2O8 is 2, thecomposite with near zero thermal expansion can be obtained. 0.25 wt% Al2O3 can effectivelyincrease the density of ZrO2/ZrW2O8 composites with slight influence on the thermal expansionproperty
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.353-358.1235.pdf
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