In-Situ, in Air, High-Temperature Phase Transformations in Rare-Earth Niobates and Titanium Oxides (Dysprosium and Yttrium) Using a Thermal-Image Furnace

Siah, Lay Foong

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Title:	In-Situ, in Air, High-Temperature Phase Transformations in Rare-Earth Niobates and Titanium Oxides (Dysprosium and Yttrium) Using a Thermal-Image Furnace
Author(s):	Siah, Lay Foong
Doctoral Committee Chair(s):	Kriven, Waltraud M.
Department / Program:	Materials Science and Engineering
Discipline:	Materials Science and Engineering
Degree Granting Institution:	University of Illinois at Urbana-Champaign
Degree:	Ph.D.
Genre:	Dissertation
Subject(s):	Engineering, Materials Science
Abstract:	The use of a co-existent "in-situ thermometer" was found to be a viable method to monitor the sample temperature in the image "hot-spot". Studies of YNbO4 and DyNbO4 revealed the existence of a new cubic phase at elevated temperatures beyond the commonly known ferroelastic monoclinic-to-paraelastic tetragonal transformations. A series of high-temperature powder patterns of the pure hexagonal phase of DY2TiO5 was also collected in-situ, in air.
Issue Date:	2002
Type:	Text
Language:	English
Description:	117 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2002.
URI:	http://hdl.handle.net/2142/82716
Other Identifier(s):	(MiAaPQ)AAI3044223
Date Available in IDEALS:	2015-09-25
Date Deposited:	2002