Accession Number:

AD0763237

Title:

Manufacturing Method for Improved Forming of Boron Carbide.

Descriptive Note:

Final rept.,

Corporate Author:

AVCO CORP LOWELL MASS SYSTEMS DIV

Personal Author(s):

Report Date:

1973-06-01

Pagination or Media Count:

28.0

Abstract:

12 IN. X 12 IN. X 38 IN. THICKNESS WAS HOT PRESSED TO A DENSITY OF 98 of theoretical by alloying additions at a temperature of 1750C and a pressure of 3500 psi. Chemical analysis reveals iron as the principal densification aid remaining in the hot pressed structure. Transverse rupture and elastic modulus tests were conducted on samples 1 34 in x 14 in. x .100 in. cut from a 12 in. x 12 in. tile. The data show the rupture strength decreasing from an average of 73.4 Ksi at room temperature to an average of 38.4 Ksi at 1400C. The elastic modulus decreases from 55.5 x 10 to the 6th power psi at room temperature to 35.5 x 10 to the 6th power psi at 1200C. Hardness measurements taken with a Knoop indenter 100 gm load range from 2530 to 2670. Author Portions of this document are not fully legible.

Subject Categories:

  • Ceramics, Refractories and Glass
  • Armor

Distribution Statement:

APPROVED FOR PUBLIC RELEASE