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Thermodynamic modeling and experimen...

Yang, Ying.

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Thermodynamic modeling and experimental investigation of the molybdenum-silicon-boron-titanium quaternary system.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Thermodynamic modeling and experimental investigation of the molybdenum-silicon-boron-titanium quaternary system./
Author:	Yang, Ying.
Description:	174 p.
Notes:	Source: Dissertation Abstracts International, Volume: 65-08, Section: B, page: 4261.
Contained By:	Dissertation Abstracts International65-08B.
Subject:	Engineering, Metallurgy. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3143097
ISBN:	0496010700

Thermodynamic modeling and experimental investigation of the molybdenum-silicon-boron-titanium quaternary system.
Yang, Ying.

Thermodynamic modeling and experimental investigation of the molybdenum-silicon-boron-titanium quaternary system. - 174 p.

Source: Dissertation Abstracts International, Volume: 65-08, Section: B, page: 4261.

Thesis (Ph.D.)--The University of Wisconsin - Madison, 2004.

Multiphase composite alloys based on the Mo-Si-B-Ti system are candidate materials for ultra-high temperature applications. A thermodynamic description of the Mo-Si-B-Ti system, serving as an essential knowledge base for better alloy design and processing control, was developed in the present study by means of thermodynamic modeling coupled with experimental measurements of phase equilibria.

ISBN: 0496010700Subjects--Topical Terms:

1023648
Engineering, Metallurgy.

Thermodynamic modeling and experimental investigation of the molybdenum-silicon-boron-titanium quaternary system.
LDR:03324nmm 2200289 4500 001 1839338
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008 130614s2004 eng d
020 $a 0496010700
035 $a (UnM)AAI3143097
035 $a AAI3143097
040 $a UnM $c UnM
100 1 $a Yang, Ying. $3 1927734
245 1 0 $a Thermodynamic modeling and experimental investigation of the molybdenum-silicon-boron-titanium quaternary system.
300 $a 174 p.
500 $a Source: Dissertation Abstracts International, Volume: 65-08, Section: B, page: 4261.
500 $a Supervisor: Y. Austin Chang.
502 $a Thesis (Ph.D.)--The University of Wisconsin - Madison, 2004.
520 $a Multiphase composite alloys based on the Mo-Si-B-Ti system are candidate materials for ultra-high temperature applications. A thermodynamic description of the Mo-Si-B-Ti system, serving as an essential knowledge base for better alloy design and processing control, was developed in the present study by means of thermodynamic modeling coupled with experimental measurements of phase equilibria.
520 $a Literature data of all the binary and ternary systems were critically reviewed in this study. The published thermodynamic descriptions for Mo-Si, B-Si, B-Ti, Mo-Ti, Ti-Si were accepted in the present study and that of Mo-B was modified in order to be consistent with the models used in the rest of the five binary systems. The Mo-Si-B and Mo-B-Ti systems were thermodynamically modeled based on critical reviewed literature data. The published experimental data for the Mo-Si-Ti and Ti-Si-B systems are very limited and not sufficient for developing the thermodynamic descriptions of these two systems. Therefore, experiments were carried out in this study to obtain phase equilibria data by means of scanning electron microscope (SEM) in backscattered electron (BSE) imaging mode, Electron probe microanalysis (EPMA) and X-ray diffraction (XRD). The obtained experimental data and the published data were used to develop the thermodynamic descriptions of these two systems. Extensive comparisons between the calculated results and experimental information were performed to validate the currently obtained thermodynamic descriptions of all four ternary systems.
520 $a Based on the thermodynamic descriptions of the four constituent ternary systems and experimental results from the quaternary alloys prepared in this study, a thermodynamic description of the Mo-Si-B-Ti system was developed. The phase relationships among Bcc, T2, D88, A15 and T1 at a range of temperatures were well established based on the current thermodynamic calculation and experimental results. New phase equilibria among Bcc, T2, T1, D88 and A15 as a result of Ti addition into the Mo-Si-B alloys offer new microstructural choices for high-temperature structural applications. The currently obtained thermodynamic description of the Mo-Si-B-Ti quaternary system can be used as a reliable knowledge base to guide the alloy design based on the multiphase microstructure consisting of Bcc, T1, T2, A15 and D88.
590 $a School code: 0262.
650 4 $a Engineering, Metallurgy. $3 1023648
690 $a 0743
710 2 0 $a The University of Wisconsin - Madison. $3 626640
773 0 $t Dissertation Abstracts International $g 65-08B.
790 1 0 $a Chang, Y. Austin, $e advisor
790 $a 0262
791 $a Ph.D.
792 $a 2004
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3143097