Browse Publications Technical Papers 2018-28-0047
2018-07-09

COEFFICIENT OF THERMAL EXPANSION AND ELASTIC MADULUS OF SICP/AL2O3 CERAMIC MATRIX COMPOSITES PREPARED BY DIRECTED METAL OXIDATION PROCESS 2018-28-0047

PHYSICAL PROPERTIES OF SICP/AL2O3 CERAMIC MATRIX COMPOSITES PREPARED BY DIRECTED METAL OXIDATION PROCESS M. Devaiah1 1Department of Mechanical Engineering, Geethanjali College of Engineering & Technology, Cheeryal (V), Keesara (M), Medchal Dist. 501301, Telangana, INDIA. Corresponding Author:Devaiah.malkapuram@gmail.com, Mobile No.:+91-9948606326 ABSTRACT The present work is aimed at optimizing the DIMOX process and at obtaining a suitable process window that enables fabrication of large SiCp/Al2O3 composite specimens for the measurement of physical properties. SiCp/Al2O3 composites were prepared by DIMOX process. Continuous oxidation of an Aluminum alloy with suitable dopant along with a perform of SiC has lead to the formation of alumina matrix surrounding silicon carbide particulates. SiCp/Al2O3 ceramic matrix composites fabricated by the DIMOX process possess required physical properties such as coefficient of thermal expansion (CTE) and elastic modulus, all at an affordable cost of fabrication. Al2O3 matrix composites reinforced with different volume fractions of SiC particulates were investigated for physical properties such as coefficient of thermal expansion (CTE) and elastic modulus. The composites with SiC volume fraction of 0.43 were found to possess a CTE as of as 5.0 x 10-6/K and an elastic modulus of 262 GPa. Further the composites were found to possess lower levels of porosity, among those processed by DIMOX. Keywords: Ceramic matrix composites; Metal infiltration; Silicon carbide; Physical properties

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Attention: This item is not yet published. Pre-Order to be notified, via email, when it becomes available.
Members save up to 43% off list price.
Login to see discount.
Special Offer: Purchase more aerospace standards and aerospace material specifications and save! AeroPaks off a customized subscription plan that lets you pay for just the documents that you need, when you need them.
X