POINT DEFECTS AND MECHANICAL PROPERTIES OF COLUMBIUM.

Abstract

The results of two and a half years of experimental work are presented in the form of conclusions, five tables and nine graphs. Also included are photographs and diagrams of the experimental set up. Results of R vs T for Cb show agreement with others up to 1000C results can be expressed by RsubT = R (OC) (1 - aT - bT squared) which differs from linear relationship obtained elsewhere. Because of quenching some kind of defects can be retained in Cb containing certain amount of interstitial impurities. A minimum dose of 1.10 to the 17th power neutrons/sq cm is necessary to produce a measurable increase in the hardness of polycrystalline Cb. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1965
Accession Number
AD0625475

Entities

People

  • Edgardo Bisogni
  • Jorge A. Coll
  • Juan C. Di Primio

Tags

DTIC Thesaurus Topics

  • Agreements
  • Crystal Structure
  • Hardness
  • Impurities
  • Mechanical Properties
  • Niobium
  • Photographic Materials
  • Photographs
  • Photography
  • Physical Properties
  • Point Defects
  • Polycrystals
  • Quenching

Readers

  • Analytical Mechanics
  • Nuclear and Radiation Engineering.
  • Thin Film Deposition Science.