Accession Number:

ADP007750

Title:

'Ultra' High-Temperature Microwave Sintering,

Descriptive Note:

Corporate Author:

OAK RIDGE Y-12 PLANT TN

Personal Author(s):

• Holcombe, C. E.
• Dykes, N. L.

Report Date:

1992-04-27

Pagination or Media Count:

12.0

Abstract:

Ultra high-temperature microwave processing, utilizing temperatures over 1900 deg C, is addressed. Primary areas of concentration involve titanium diboride TiB2 - 3 wt CrB2 and boron carbide B4C -2.5 wt C. Using 2.45 GHz radiation, high-density, crack-free specimens can be produced. The importance of casketing and coverings along with material interactions is discussed. Comparison of microwaving with conventional sintering or hot-pressing indicates that microwaving may be advantageous.

Descriptors:

• *MICROWAVES
• *SINTERING
• *CERAMIC MATERIALS
• BORON
• BORON CARBIDES
• CARBIDES
• COMPARISON
• COVERINGS
• CRACKS
• DENSITY
• HIGH DENSITY
• HIGH TEMPERATURE
• HOT PRESSING
• INTERACTIONS
• MATERIALS
• PROCESSING
• RADIATION
• TEMPERATURE
• TITANIUM
• HARDNESS
• TITANIUM BORIDE
• ELECTRICAL CONDUCTIVITY
• PHYSICAL PROPERTIES
• SYMPOSIA

Subject Categories:

• Ceramics, Refractories and Glass
• Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE