The effects of thermal cycling on the physical and mechanical properties of [NZP] ceramics

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The [NZP] ceramics, sodium zirconium phosphate and its crystal structure analogs, are noted for their very low thermal expansion characteristics. What has not been widely studied is the effect of thermal cycling on physical and mechanical properties. Two [NZP] compositional series were selected (Ba{sub 1+x}Zr{sub 4}P{sub 6{minus}2x}Si{sub 2x}O{sub 24} and Ca{sub 1{minus}x}Sr{sub x}Zr{sub 4}P{sub 6}O{sub 24}) that exhibit varying bulk thermal expansion from positive to negative and varying degrees of thermal expansion anisotropy. The effect of thermal cycling, to 1,250 C, on the bulk thermal expansion and flexural strength of these ceramics is discussed in relationship to changes in density, ... continued below

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16 p.

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Jackson, T.B.; Limaye, S.Y. & Porter, W.D. December 31, 1994.

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Description

The [NZP] ceramics, sodium zirconium phosphate and its crystal structure analogs, are noted for their very low thermal expansion characteristics. What has not been widely studied is the effect of thermal cycling on physical and mechanical properties. Two [NZP] compositional series were selected (Ba{sub 1+x}Zr{sub 4}P{sub 6{minus}2x}Si{sub 2x}O{sub 24} and Ca{sub 1{minus}x}Sr{sub x}Zr{sub 4}P{sub 6}O{sub 24}) that exhibit varying bulk thermal expansion from positive to negative and varying degrees of thermal expansion anisotropy. The effect of thermal cycling, to 1,250 C, on the bulk thermal expansion and flexural strength of these ceramics is discussed in relationship to changes in density, thermal expansion anisotropy and microstructure.

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16 p.

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OSTI as DE95014042

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  • 96. annual meeting of the American Ceramic Society (ACS), Indianapolis, IN (United States), 25-28 Apr 1994

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  • Other: DE95014042
  • Report No.: CONF-940416--35
  • Grant Number: AC05-84OR21400
  • DOI: 10.2172/102179 | External Link
  • Office of Scientific & Technical Information Report Number: 102179
  • Archival Resource Key: ark:/67531/metadc625384

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Office of Scientific & Technical Information Technical Reports

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  • December 31, 1994

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • Jan. 19, 2016, 1:01 p.m.

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Jackson, T.B.; Limaye, S.Y. & Porter, W.D. The effects of thermal cycling on the physical and mechanical properties of [NZP] ceramics, report, December 31, 1994; Tennessee. (digital.library.unt.edu/ark:/67531/metadc625384/: accessed November 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.