Transparent Armor Ceramics as Spacecraft Windows

Transparent Armor Ceramics as Spacecraft Windows

The slow crack growth parameters of several transparent armor ceramics were measured as part of a program to lighten next generation spacecraft windows. Transparent magnesium aluminate (spinel, MgAl2O4) and AlON exhibit superior slow crack resistance relative to fused silica, which is the historical...

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Veröffentlicht in:Journal of the American Ceramic Society 2013-01, Vol.96 (1), p.281-289
1. Verfasser: Salem, Jonathan A.
Format: Artikel
Sprache:eng
Schlagworte:
Alumina
Armor
Armour
Ceramics
Coarsening
Crack propagation
Grain boundaries
Grain size
Phases
Porosity
Silica
Spacecraft windows
Spinel
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creator Salem, Jonathan A.
description The slow crack growth parameters of several transparent armor ceramics were measured as part of a program to lighten next generation spacecraft windows. Transparent magnesium aluminate (spinel, MgAl2O4) and AlON exhibit superior slow crack resistance relative to fused silica, which is the historical material of choice. For spinel, slow crack growth, strength, and fracture toughness are significantly influenced by the grain size, and alumina‐rich phases and porosity at the grain boundaries lead to intergranular fracture in coarse grain spinel. Functions describing the required mass for a desired window life imply that transparent ceramics can lighten window panes from a slow crack growth perspective.
doi_str_mv 10.1111/jace.12089
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Functions describing the required mass for a desired window life imply that transparent ceramics can lighten window panes from a slow crack growth perspective.</description><subject>Alumina</subject><subject>Armor</subject><subject>Armour</subject><subject>Ceramics</subject><subject>Coarsening</subject><subject>Crack propagation</subject><subject>Grain boundaries</subject><subject>Grain size</subject><subject>Phases</subject><subject>Porosity</subject><subject>Silica</subject><subject>Spacecraft windows</subject><subject>Spinel</subject><issn>0002-7820</issn><issn>1551-2916</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqN0U9PwjAYBvDGaCKiFz_BEi_GZPj2z7r2SCaiBNFElGNTRpsMYZstBPn2FqcePKi9NE1-z5u2D0KnGDo4rMu5zk0HExByD7VwkuCYSMz3UQsASJwKAofoyPt5OGIpWAvB2OnS19qZchV13bJyUWacXha5j7SPHuswMHfarqJJUc6qjT9GB1YvvDn53Nvo6bo3zm7i4X3_NusO45xRIeMZTzhjMp9arTmlGoPgYDklFqxIhGEAnEsruDDCTA0mQqaWzoy1ciY5aNpG583c2lWva-NXaln43CwWujTV2ivMJaEcJCN_U0ooSZgA9g-Kw70pTXmgZz_ovFq7MrxZYcJTsftCCOqiUbmrvHfGqtoVS-22CoPaVaJ2laiPSgLGDd4UC7P9RapBN-t9ZeImU_iVefvOaPeieErTRE1GfYVH7HlydTdQD_QdXi6Ztw</recordid><startdate>201301</startdate><enddate>201301</enddate><creator>Salem, Jonathan A.</creator><general>Blackwell Publishing Ltd</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><scope>7QF</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>201301</creationdate><title>Transparent Armor Ceramics as Spacecraft Windows</title><author>Salem, Jonathan A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4389-d656449cbfaa633a10860f632f0f858e400669f868e8ebe12897f3deff9d960a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Alumina</topic><topic>Armor</topic><topic>Armour</topic><topic>Ceramics</topic><topic>Coarsening</topic><topic>Crack propagation</topic><topic>Grain boundaries</topic><topic>Grain size</topic><topic>Phases</topic><topic>Porosity</topic><topic>Silica</topic><topic>Spacecraft windows</topic><topic>Spinel</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Salem, Jonathan A.</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Aluminium Industry Abstracts</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of the American Ceramic Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Salem, Jonathan A.</au><au>Sglavo, V.</au><au>Sglavo, V.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Transparent Armor Ceramics as Spacecraft Windows</atitle><jtitle>Journal of the American Ceramic Society</jtitle><addtitle>J. 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subjects Alumina
Armor
Armour
Ceramics
Coarsening
Crack propagation
Grain boundaries
Grain size
Phases
Porosity
Silica
Spacecraft windows
Spinel
title Transparent Armor Ceramics as Spacecraft Windows
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