Accession Number:

ADA076036

Title:

Titanium Carbide-Nickel Cermets: Processing and Joing

Descriptive Note:

Technical rept.

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE

Personal Author(s):

• Wulff, John
• Cline, James E.
• Shaler, Amos J.
• Basche, Malcolm
• Bourdeau, Romeo G.

Report Date:

1952-03-01

Pagination or Media Count:

20.0

Abstract:

Titanium carbide-nickel cermets can be sintered to have transverse rupture strengths over 250,000 pounds per square inch. To do so, four principal processing variables must be controlled the powder must be as free as possible from oxygen and nitrogen the powder must be milled in carbon tetrachloride and pressed without intermediate drying sintering must be done in vacuo or possibly in an inert gas, but not in hydrogen heating-up must be slow enough to allow thorough degassing. Joining titanium-carbide cermets to high-temperature alloys has been accomplished by vacuum diffusion, and gives a weld stronger than thee cermet. Fabrication of cermet articles of graded composition has been successfully accomplished by fragmentation-forming, i.e., cold forging the powder in a ductile envelope and subsequently sintering

Descriptors:

• *NICKEL ALLOYS
• *POWDER METALLURGY
• *TITANIUM ALLOYS
• *CERMETS
• FRAGMENTATION
• PROCESSING
• HIGH TEMPERATURE
• VACUUM
• FABRICATION
• RUPTURE
• NITROGEN
• FORGING
• VARIABLES
• WELDS
• OXYGEN
• HEATING
• JOINING
• DIFFUSION
• INERT MATERIALS
• DRYING
• SINTERING
• VACUUM DEGASSING
• CARBON TETRACHLORIDE
• COLD WORKING

Subject Categories:

• Ceramics, Refractories and Glass
• Metallurgy and Metallography
• Fabrication Metallurgy
• Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE