Applications of the Optical Differential Thermal Analysis.

reportActive / Technical Report | Accession Number: ADA196706 | Open PDF

Abstract:

ODTA detects temperature contact less, hence, it expands the upper usable temperature limit of DTA up to 3600 C accordingly suitable for studies of systems where enthalpic changes occur at high temperatures. Application of the computer graphics for the evaluation of the ODTA curves is demonstrated on melting of Y2OO3.A12O3 and Ya13-GdA1O3 systems. Measurement errors occurring at temperatures above 1900 C are pointed out and possibilities for their elimination or at least diminution are discussed. Keywords Thermal analysis, Optical method, Data acquisition, Sapphire melting, Mathematical differentiation, Electronic differentiation, Emissivity measurements, Color graphics. MJM

Author(s):
Caslavsky, Jaroslav L.
Author Organization(s):
ARMY LAB COMMAND WATERTOWN MA MATERIAL TECHNOLOGY LAB
Descriptive Note:
Final rept.,
Pagination:
0015

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
MTL-TR-88-18
Project Number(s):
1L161102AH42
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_1.2_Force Preparation; JCA_1_Force Support; JCA_1.2.3_Educating; JCA_3.2_Engagement; JCA_3_Force Application
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*COMPUTER GRAPHICS, *DIFFERENTIAL THERMAL ANALYSIS, *GRAPHICS, *OPTICAL ANALYSIS, *THERMAL ANALYSIS, COLORS, DATA ACQUISITION, EMISSIVITY, ERRORS, HIGH TEMPERATURE, LIMITATIONS, MEASUREMENT, MELTING, OPTICAL PROPERTIES, SAPPHIRE, TEMPERATURE
Field(s)/Group(s):
Thermodynamics
Keyword(s):
ASH42, PE61102A
Report Date:
1988 May 01