Study on the decomposition of the crystalline phase Na2O·8TeO2

Dongmei Zhu; Fa Luo; Wancheng Zhou; Chandra S. Ray; Delbert E. Day

Study on the decomposition of the crystalline phase Na₂O·8TeO₂

Dongmei Zhu, Fa Luo, Wancheng Zhou, Chandra S. Ray, Delbert E. Day

School of Materials Sience and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The new crystalline phase was found in the Na₂O·TeO₂ system, Na₂O·8TeO₂, (NT₈) was heated at different temperatures for different time and the crystalline phase in the different samples were analyzed. The mechanism of the decomposition for the Na₂O·8TeO₂ was explored and discussed in detail. Results show that the NT₈ is stable below 330°C and will decompose into two crystalline phase: Na₂O·4TeO₂ and TeO₂. There are two thermal effects found during the decomposition of NT₈: one is the endothermal and the other exothermal, indicating that one amorphous phase formed during the decomposition of NT₈. It is believed that the decomposition of NT₈ happened according the following two steps: first the NT₈ is transformed into an amorphous phase and then the amorphous phase is transformed into NT₄ and TeO₂.

Original language	English
Pages (from-to)	309-311
Number of pages	3
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	36
Issue number	SUPPL. 2
State	Published - Aug 2007

Keywords

Amorphous
Decomposition
NT

Cite this

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title = "Study on the decomposition of the crystalline phase Na2O·8TeO2",

abstract = "The new crystalline phase was found in the Na2O·TeO2 system, Na2O·8TeO2, (NT8) was heated at different temperatures for different time and the crystalline phase in the different samples were analyzed. The mechanism of the decomposition for the Na2O·8TeO2 was explored and discussed in detail. Results show that the NT8 is stable below 330°C and will decompose into two crystalline phase: Na2O·4TeO2 and TeO2. There are two thermal effects found during the decomposition of NT8: one is the endothermal and the other exothermal, indicating that one amorphous phase formed during the decomposition of NT8. It is believed that the decomposition of NT8 happened according the following two steps: first the NT8 is transformed into an amorphous phase and then the amorphous phase is transformed into NT4 and TeO2.",

keywords = "Amorphous, Decomposition, NT",

author = "Dongmei Zhu and Fa Luo and Wancheng Zhou and Ray, {Chandra S.} and Day, {Delbert E.}",

year = "2007",

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pages = "309--311",

journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

issn = "1002-185X",

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TY - JOUR

T1 - Study on the decomposition of the crystalline phase Na2O·8TeO2

AU - Zhu, Dongmei

AU - Luo, Fa

AU - Zhou, Wancheng

AU - Ray, Chandra S.

AU - Day, Delbert E.

PY - 2007/8

Y1 - 2007/8

N2 - The new crystalline phase was found in the Na2O·TeO2 system, Na2O·8TeO2, (NT8) was heated at different temperatures for different time and the crystalline phase in the different samples were analyzed. The mechanism of the decomposition for the Na2O·8TeO2 was explored and discussed in detail. Results show that the NT8 is stable below 330°C and will decompose into two crystalline phase: Na2O·4TeO2 and TeO2. There are two thermal effects found during the decomposition of NT8: one is the endothermal and the other exothermal, indicating that one amorphous phase formed during the decomposition of NT8. It is believed that the decomposition of NT8 happened according the following two steps: first the NT8 is transformed into an amorphous phase and then the amorphous phase is transformed into NT4 and TeO2.

AB - The new crystalline phase was found in the Na2O·TeO2 system, Na2O·8TeO2, (NT8) was heated at different temperatures for different time and the crystalline phase in the different samples were analyzed. The mechanism of the decomposition for the Na2O·8TeO2 was explored and discussed in detail. Results show that the NT8 is stable below 330°C and will decompose into two crystalline phase: Na2O·4TeO2 and TeO2. There are two thermal effects found during the decomposition of NT8: one is the endothermal and the other exothermal, indicating that one amorphous phase formed during the decomposition of NT8. It is believed that the decomposition of NT8 happened according the following two steps: first the NT8 is transformed into an amorphous phase and then the amorphous phase is transformed into NT4 and TeO2.

KW - Amorphous

KW - Decomposition

KW - NT

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M3 - 文章

AN - SCOPUS:36248959816

SN - 1002-185X

VL - 36

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EP - 311

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - SUPPL. 2

ER -

Study on the decomposition of the crystalline phase Na₂O·8TeO₂

Abstract

Keywords

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