Record Details

Thermal Expansion Behavior of Hot-Pressed Engineered Matrices
NTRS Full-Text: Click to View  [PDF Size: 4.6 MB]
Author and Affiliation:
Raj, S. V.(NASA Glenn Research Center, Cleveland, OH United States)
Abstract: Advanced engineered matrix composites (EMCs) require that the coefficient of thermal expansion (CTE) of the engineered matrix (EM) matches those of the fiber reinforcements as closely as possible in order to reduce thermal compatibility strains during heating and cooling of the composites. The present paper proposes a general concept for designing suitable matrices for long fiber reinforced composites using a rule of mixtures (ROM) approach to minimize the global differences in the thermal expansion mismatches between the fibers and the engineered matrix. Proof-of-concept studies were conducted to demonstrate the validity of the concept.
Publication Date: Feb 01, 2016
Document ID:
20160001712
(Acquired Feb 10, 2016)
Subject Category: COMPOSITE MATERIALS
Report/Patent Number: NASA/TM-2016-218953, E-19195, GRC-E-DAA-TN28720
Document Type: Technical Report
Contract/Grant/Task Num: WBS 10949.02.03.02.02.01
Financial Sponsor: NASA Glenn Research Center; Cleveland, OH United States
Organization Source: NASA Glenn Research Center; Cleveland, OH United States
Description: 28p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: THERMAL EXPANSION; HOT PRESSING; AEROSPACE ENGINEERING; FIBER COMPOSITES; COMPOSITE MATERIALS; COMPOSITE STRUCTURES; HEATING; COOLING; MATRIX MATERIALS; RESIDUAL STRESS; COMPATIBILITY; SILICON NITRIDES; SILICON CARBIDES
Other Descriptors: ENGINEERED MATRIX COMPOSITES; COEFFICIENT OF THERMAL EXPANSION; ENGINEERED MATRIX; SILICIDES; SILICON NITRIDE; SILICON CARBIDE
› Back to Top
Facebook icon, External Link to NASA STI page on Facebook Twitter icon, External Link to NASA STI on Twitter YouTube icon, External Link to NASA STI Channel on YouTube RSS icon, External Link to New NASA STI RSS Feed
Find Similar Records
 
NASA Logo, External Link

NASA Official: Gerald Steeman

Sponsored By: NASA Scientific and Technical Information Program

Site Curator: STI Support Services

Last Modified: February 10, 2016

Privacy Policy & Important Notices Disclaimers, Copyright, Terms of Use Freedom of Information Act USA.gov NASA.gov NASA OCIO Free Adobe PDF Reader Free MS Word Viewer