SGER-Iota-氧化铝涂层的开发-猫眼课题宝

SGER-Iota-氧化铝涂层的开发

批准号：

0122539

负责人：

Soumendra Basu

金额：

$5.0万

依托单位：

Trustees of Boston University

依托单位国家：

美国

项目类别：

Standard Grant

财政年份：

2001

资助国家：

美国

项目状态：

已结题

起止时间：

2001-10-01 至 2003-09-30

来源：

https://www.nsf.gov/awardsearch/showAward?AWD_ID=0122539&HistoricalAwards=false

关键词：

SGER Development Iota Alumina Coatings

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英文摘要

0122539BasuAn SGER award supports a study of the feasibility of depositing compositionally graded coatings in the mullite-iota alumina system. The intent is to develop coatings which will provide high temperature oxidation and corrosion resistance to SiC and Si3N4 ceramics without spalling during thermal cycles. The intent is to CVD deposit a coating which is mullite (3Al2O3.2SiO2) at the interface with the ceramic substrate and to gradually change the composition to pure alumina of the iota-alumina phase, which has the same crystal structure as mullite. The coatings will be evaluated for crystal structure, thermal expansion properties, and high temperature oxidation resistance.***

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