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Raman Spectroscopic Studies on the Formation Mechanism of Hydrous‐Zirconia Fine Particles
Author(s) -
Matsui Koji,
Suzuki Hajime,
Ohgai Michiharu,
Arashi Haruo
Publication year - 1995
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1995.tb08374.x
Subject(s) - raman spectroscopy , cubic zirconia , monoclinic crystal system , ion , materials science , particle size , hydrolysis , crystal structure , crystal (programming language) , inorganic chemistry , mineralogy , analytical chemistry (journal) , chemistry , ceramic , crystallography , organic chemistry , metallurgy , optics , programming language , physics , computer science
The Raman spectra of hydrous‐zirconia fine particles produced by the hydrolysis of various ZrOCl 2 solutions were investigated. The Raman spectra of hydrous zirconia synthesized at HCl concentrations below 1 mol/L were similar to those of monoclinic, crystalline ZrO 2 ; those of hydrous zirconia synthesized at HCl concentrations greater than 1 mol/L showed a crystal structure change. The line width of the Raman bands increased with increasing H + ion concentration. Analyzing the relationship between Raman band width and particle size revealed that the primary particle size of hydrous zirconia was controlled by the H + and Cl − ions, because these ions interfered with the polymerization in a hydrolysis reaction. Based on the experimental results, the formation mechanism for primary particles of hydrous zirconia was determined.