Silicon Effects on Properties of Melt Infiltrated Sic/Sic Composites
Author | : National Aeronautics and Space Adm Nasa |
Publisher | : Independently Published |
Total Pages | : 30 |
Release | : 2018-09-25 |
ISBN-10 | : 1724019619 |
ISBN-13 | : 9781724019615 |
Rating | : 4/5 (615 Downloads) |
Download or read book Silicon Effects on Properties of Melt Infiltrated Sic/Sic Composites written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-09-25 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Silicon effects on tensile and creep properties, and thermal conductivity of Hi-Nicalon SiC/SiC composites have been investigated. The composites consist of 8 layers of 5HS 2-D woven preforms of BN/SiC coated Hi-Nicalon fiber mats and a silicon matrix, or a mixture of silicon matrix and SiC particles. The Hi-Nicalon SiC/silicon and Hi-Nicalon SiC/SiC composites contained about 24 and 13 vol% silicon, respectively. Results indicate residual silicon up to 24 vol% has no significant effect on creep and thermal conductivity, but does decrease the primary elastic modulus and stress corresponding to deviation from linear stress-strain behavior. Bhatt, Ramakrishna T. and Gyekenyesi, John Z. and Hurst, Janet B. Glenn Research Center NASA/TM-2000-210034, E-12231, NAS 1.15:210034