NDLI: Growth of solid solution single crystals

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Growth of solid solution single crystals

Content Provider	NASA Technical Reports Server (NTRS)
Author	Lehoczky, S. L. Szofran, F. R.
Copyright Year	1987
Description	Based on the thermophysical properties of Hg sub 1-x Cd sub x Te alloys, the reasons are discussed for the failure of conventional Bridgman-Stockbarger growth methods to produce high quality homogeneous crystals in the presence of Earth's gravity. The deleterious effects are considered which arise from the dependence of the thermophysical properties on temperature and composition and from the large amount of heat carried by the fused silica ampules. An improved growth method, developed to optimize heat flow conditions, is described and experimental results are presented. The problems associated with growth in a gravitational environment are discussed. The anticipated advantages of growth in microgravity are given and the implications of the requirements for spaceflight experiments are summarized.
File Size	652046
Page Count	17
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19880004830
Archival Resource Key	ark:/13960/t5jb1222n
Language	English
Publisher Date	1987-12-01
Access Restriction	Open
Subject Keyword	Materials Processing Crystal Growth Mercury Cadmium Tellurides Single Crystals Space Manufacturing Microgravity Applications Solid Solutions Gravitational Effects Space Commercialization Weightlessness Microgravity Thermophysical Properties Bridgman Method Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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