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View Generic Document: Phase Equilibria Studies of Bi2O3-Mn2O3-Nb2O5

Citation: Adler, Alexander U. (2005). Phase Equilibria Studies of Bi2O3-Mn2O3-Nb2O5. National Institute of Standards and Technology, Technology Administration, U.S. Department of Commerce..
Collection: NIST Summer Undergraduate Research Fellowship (SURF) program  
 
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Title Phase Equilibria Studies of Bi2O3-Mn2O3-Nb2O5
Author(s) Adler, Alexander U.
Keyword(s) x-ray diffraction
phase diagram
ferroelectric materials
ferromagnetic materials
Abstract/Summary Research on the Bi2O3-Mn2O3-Nb2O5 ternary system has many ramifications for those interested in the electric and magnetic properties ceramics can offer. Through X-Ray diffraction pattern analysis, applications of solid state chemistry, and existing knowledge of binary phase diagrams, we have constructed a phase diagram for this system that shows a few interesting caveats. In conjunction with the Metallurgy Division and TCI Ceramics, Inc., we have examined key compounds and mixtures involving these three compounds for their electric and magnetic properties in hopes of determining useful characteristics for industry such as their dielectric and magnetic properties. Through carefully chosen points on the ternary plot between Bi2O3, Mn2O3 and Nb2O5 and the analysis of Xray diffraction patterns of the said equilibrated compounds and solutions, we are able to map out single, double and triple phase regions. The “map” we create can be used by industry to generate compounds with specific qualities or perhaps realize that such compounds or qualities cannot be obtained through work with these three compounds; either way, saving a lot of time. Enhanced knowledge in the area of “multiferroic” (materials blending ferroelectric and ferromagnetic properties) materials is key to technological progress in the future as such understanding may improve quantum computing, electronic circuits and wireless technology to name just a few areas. Through analyzing the applications and results of our system and covering the basic applications and findings of other such systems, I hope to present a well-rounded view of this field of research and its ramifications on the future of technology.
Publisher National Institute of Standards and Technology, Technology Administration, U.S. Department of Commerce.
Date 2005-01-01
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