Processing and characterization of laminated SiC whisker reinforced Al2O3

E. D. Kragness, M. F. Amateau, Gary Lynn Messing

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Laminated silicon carbide (SiC) whisker/alumina (Al2O3) composites were fabricated by tape casting and hot pressing. Whisker loadings of 10 and 20 vol% were produced with a predominance of fiber orientation in the direction of casting. Elastic, thermal and mechanical properties of the composites were measured in the longitudinal and transverse directions. The elastic moduli for 10 and 20 whisker vol% Al2O3 composites were approximately the same as unreinforced alumina. The coefficient of thermal expansion was reduced by the addition of the whiskers. The fracture toughness of the composites increased with whisker content from 3.8 MPa m 1/2 for pure alumina to 8.0 MPa m 1/2 for 20 vol% whiskers in the longitudinal direction.

Original languageEnglish (US)
Pages (from-to)433-452
Number of pages20
JournalJournal of Composite Materials
Volume25
Issue number4
StatePublished - Apr 1991

Fingerprint

Silicon carbide
Aluminum Oxide
Alumina
Composite materials
Processing
Casting
Hot pressing
Fiber reinforced materials
Tapes
Thermal expansion
Fracture toughness
Thermodynamic properties
Elastic moduli
Mechanical properties
silicon carbide
Direction compound

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites

Cite this

@article{72d6f1291e7840278f965e7475b38810,
title = "Processing and characterization of laminated SiC whisker reinforced Al2O3",
abstract = "Laminated silicon carbide (SiC) whisker/alumina (Al2O3) composites were fabricated by tape casting and hot pressing. Whisker loadings of 10 and 20 vol{\%} were produced with a predominance of fiber orientation in the direction of casting. Elastic, thermal and mechanical properties of the composites were measured in the longitudinal and transverse directions. The elastic moduli for 10 and 20 whisker vol{\%} Al2O3 composites were approximately the same as unreinforced alumina. The coefficient of thermal expansion was reduced by the addition of the whiskers. The fracture toughness of the composites increased with whisker content from 3.8 MPa m 1/2 for pure alumina to 8.0 MPa m 1/2 for 20 vol{\%} whiskers in the longitudinal direction.",
author = "Kragness, {E. D.} and Amateau, {M. F.} and Messing, {Gary Lynn}",
year = "1991",
month = "4",
language = "English (US)",
volume = "25",
pages = "433--452",
journal = "Journal of Composite Materials",
issn = "0021-9983",
publisher = "SAGE Publications Ltd",
number = "4",

}

Processing and characterization of laminated SiC whisker reinforced Al2O3 . / Kragness, E. D.; Amateau, M. F.; Messing, Gary Lynn.

In: Journal of Composite Materials, Vol. 25, No. 4, 04.1991, p. 433-452.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Processing and characterization of laminated SiC whisker reinforced Al2O3

AU - Kragness, E. D.

AU - Amateau, M. F.

AU - Messing, Gary Lynn

PY - 1991/4

Y1 - 1991/4

N2 - Laminated silicon carbide (SiC) whisker/alumina (Al2O3) composites were fabricated by tape casting and hot pressing. Whisker loadings of 10 and 20 vol% were produced with a predominance of fiber orientation in the direction of casting. Elastic, thermal and mechanical properties of the composites were measured in the longitudinal and transverse directions. The elastic moduli for 10 and 20 whisker vol% Al2O3 composites were approximately the same as unreinforced alumina. The coefficient of thermal expansion was reduced by the addition of the whiskers. The fracture toughness of the composites increased with whisker content from 3.8 MPa m 1/2 for pure alumina to 8.0 MPa m 1/2 for 20 vol% whiskers in the longitudinal direction.

AB - Laminated silicon carbide (SiC) whisker/alumina (Al2O3) composites were fabricated by tape casting and hot pressing. Whisker loadings of 10 and 20 vol% were produced with a predominance of fiber orientation in the direction of casting. Elastic, thermal and mechanical properties of the composites were measured in the longitudinal and transverse directions. The elastic moduli for 10 and 20 whisker vol% Al2O3 composites were approximately the same as unreinforced alumina. The coefficient of thermal expansion was reduced by the addition of the whiskers. The fracture toughness of the composites increased with whisker content from 3.8 MPa m 1/2 for pure alumina to 8.0 MPa m 1/2 for 20 vol% whiskers in the longitudinal direction.

UR - http://www.scopus.com/inward/record.url?scp=0026135756&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026135756&partnerID=8YFLogxK

M3 - Article

VL - 25

SP - 433

EP - 452

JO - Journal of Composite Materials

JF - Journal of Composite Materials

SN - 0021-9983

IS - 4

ER -