TERNARY PHASE EQUILIBRIA IN TRANSITION METAL-BORON-CARBON-SILICON SYSTEMS. PART II. TERNARY SYSTEMS. VOLUME 5. TI-HF-B SYSTEM

reportActive / Technical Report | Accession Number: AD0482359 | Open PDF

Abstract:

A complete phase diagram for the ternary alloy system titanium- hafnium-boron from 1000 C through the melting ranges of the diborides was established on the basis of X-ray, melting point and metallographic studies. The outstanding features of the system are that both the metal diborides and monoborides form continuous solid solutions with respect to metal exchange. From the distribution of the tie-lines in the metal monoboride two-phase field, the Gibbs free energy difference between the titanium monoboride and hafnium monoboride was derived.

Author(s):
Chang, Y. A.
Author Organization(s):
AEROJET-GENERAL CORP SACRAMENTO CA MATERIALS RESEARCH LAB
Descriptive Note:
Documentary rept.
Supplementary Note:
See also Part 2, Volume 2, AD475018.
Pagination:
0064

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
PT-2-VOL-5, AFML-TR-65-2-PT-2-VOL-5
Contract/Grant Number(s):
AF 33(615)-1249
Task Number(s):
735001
Project Number(s):
AF-7350
Monitor Series:
TR-65-2-PT-2-VOL-5, AFML
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_8_Building Partnerships; JCA_8.2_Shape; JCA_3_Force Application; JCA_4.5.4_Requirements Definition; JCA_4.5_Operational Contract Support; JCA_8.1_Communicate; JCA_6.4.1_Secure Information Exchange; JCA_3.2_Engagement; JCA_3.2.1_Kinetic Means; JCA_3.1.3_Maneuver to Influence; JCA_3.1_Maneuver; JCA_6.4_Information Assurance; JCA_6_Net Centric; JCA_8.1.1_Inform Domestic and Foreign Audiences; JCA_8.1.3_Influence Adversary and Competitor Audiences; JCA_8.2.1_Partner with Governments and Institutions; JCA_8.2.2_Provide Aid to Foreign Partners and Institutions; JCA_8.2.3_Build the Capabilities and Capacities of Partners and Institutions; JCA_8.2.5_Strengthen Global Defense Posture
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*BORON ALLOYS, *HAFNIUM ALLOYS, *PHASE STUDIES, *TITANIUM ALLOYS, BORIDES, CRYSTAL LATTICES, CRYSTAL STRUCTURE, DIFFERENTIAL THERMAL ANALYSIS, HAFNIUM COMPOUNDS, INTERMETALLIC COMPOUNDS, MELTING, MICROSTRUCTURE, SOLID SOLUTIONS, THERMODYNAMICS, TITANIUM COMPOUNDS, TRANSITION TEMPERATURE, X RAY DIFFRACTION
Field(s)/Group(s):
Properties of Metals and Alloys
Keyword(s):
HAFNIUM DIBORIDE, TITANIUM BORIDE, ALLOYS, TRANSITION METALS
Report Date:
1966 Mar 01