Accession Number:

ADA151978

Title:

Mechanical Aspects of Interfaces and Surfaces in Ceramic Containing Systems.

Descriptive Note:

Annual rept. 1 Jan-31 Dec 84,

Corporate Author:

CALIFORNIA UNIV BERKELEY DEPT OF MATERIALS SCIENCE AND MINERAL ENGINEERING

Personal Author(s):

• Evans,A. G.
• Ahmad,Z. B.
• Beaumont,P. W. R.
• Case,E. D.
• Drory,M. D.

Report Date:

1984-12-14

Pagination or Media Count:

410.0

Abstract:

The mechanical behavior of various multicomponent materials have been investigated. The systems studied include ceramic matrix composites, metalceramic bonded systems and polymer particulate composites. Experimental observations of fracture behavior have been used to develop criteria that identify the fracture parameters pertinent to structural design. For example, the matrix cracking strength and the ultimate tensile strength have emerged as important parameters in ceramic composite failure. Micromechanics models of mechanical behaviors have also been developed, whenever experimental knowledge sufficiently characterizes the important physical features. Matrix cracking in composites and edge effects in metalceramic bonded systems are examples of phenomena that have been comprehensively modelled. Originator supplied keywords include Ceramic matrix composites metalceramic bonded systems particulate toughened polymers interface bonding interface friction crack blunting edge effects fracture toughness matrix cracking indentation fracture and metalceramic interfaces.

Descriptors:

• *MECHANICAL PROPERTIES
• *INTERFACES
• *COMPOSITE MATERIALS
• *CERAMIC MATERIALS
• METALS
• TENSILE STRENGTH
• POLYMERS
• EDGES
• CRACKING(FRACTURING)
• MATRIX MATERIALS
• STRENGTH(MECHANICS)
• FRACTURE(MECHANICS)
• PARTICULATES

Subject Categories:

• Ceramics, Refractories and Glass
• Laminates and Composite Materials
• Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE