UM
Part II: Phase transformation-induced bloating behavior in diopside glass-ceramics for microwave dielectrics
Chou, Chen Chia; Feng, Kuei Chih; Raevski, Igor P.; Chu, Li Wen; Chen, Haydn; Chen, Pin-Yi; Chen, Cheng-Sao; Lee, Hao Wei; Tu, Chi-Shun
2017-12
Conference NameMATERIALS RESEARCH BULLETIN
Volume96
Pages71-75
Publication PlaceTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
PublisherPERGAMON-ELSEVIER SCIENCE LTD
AbstractPhase transformation and bloating behavior of CaMgSi2O6 glass-ceramics with ZrO2 nucleating agent using two-stage heat treatments were investigated as functions of annealing temperature. The specimens annealed below critical nucleation temperature (T-cn) and sintered at 950 degrees C exhibit significant bloating phenomena. Kinetic study of CaO-MgO-SiO2-ZrO2 (CMSZ) glasses annealed below T-cn reveals high activation energy of crystallization for the ZrO2 nucleation, and XRD refinement results show the least ZrO2 contents. The formations of fleeing oxygen and bloating are likely associated with high energy barrier of ZrO2 phase and zirconia dissolution in the CMSZ glass. Specimens annealed above the T-cn and sintered at 950 degrees C show significant reduction of activation energy of ZrO2 and enhanced densities. This work demonstrates that the bloating behavior of diopside glass-ceramics is attributed to the activation energy of nucleating agents. (C) 2017 Elsevier Ltd. All rights reserved.
KeywordDiopside Glass-ceramics Nucleating agent Activation energy
DOI10.1016/j.materresbull.2017.01.041
URLView the original
Indexed BySCI ; CPCI
Language英语
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000413379800005
The Source to ArticleWOS
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Cited Times [WOS]:4   [WOS Record]     [Related Records in WOS]
Document TypeConference paper
CollectionUniversity of Macau
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GB/T 7714
Chou, Chen Chia,Feng, Kuei Chih,Raevski, Igor P.,et al. Part II: Phase transformation-induced bloating behavior in diopside glass-ceramics for microwave dielectrics[C]. THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND:PERGAMON-ELSEVIER SCIENCE LTD,2017:71-75.
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