Preparation of NZP-Type Ca0.75+0.5xZr1.5Fe0.5(PO4)3-x(SiO4)x Powders and Ceramic, Thermal Expansion Behavior

被引：7

作者：

Savinykh, D. O. ^{[1
]}

Khainakov, S. A. ^{[2
]}

Boldin, M. S. ^{[1
]}

Orlova, A. I. ^{[1
]}

Aleksandrov, A. A. ^{[1
]}

Lantsev, E. A. ^{[1
]}

Sakharov, N. V. ^{[1
]}

Murashov, A. A. ^{[1
]}

Garcia-Granda, S. ^{[2
]}

Nokhrin, A. V. ^{[1
]}

Chuvil'deev, V. N. ^{[1
]}

机构：

[1] Lobachevsky State Univ, Pr Gagarina 23, Nizhnii Novgorod 603950, Russia

[2] Univ Oviedo, Calle San Francisco 1, Oviedo 33003, Spain

来源：

INORGANIC MATERIALS | 2018年 / 54卷 / 12期

基金：

俄罗斯科学基金会;

关键词：

NZP; phosphatosilicate; sol-gel process; X-ray diffraction; solid solution; thermal expansion; SPS; NAZR2(PO4)(3) STRUCTURE; PHOSPHATES; CALCIUM; FAMILY; NA;

D O I：

10.1134/S0020168518120154

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ca0.75 + 0.5xZr1.5Fe0.5(PO4)(3 -x)(SiO4)(x) (x = 0-0.5) solid solutions have been synthesized by a sol-gel process and characterized by X-ray diffraction, IR spectroscopy, and differential scanning calorimetry. As expected, the synthesized phosphatosilicates crystallize in a NaZr2(PO4)(3)-type structure (trigonal symmetry, sp. gr. Rc). The thermal expansion of the solid solutions has been studied by high-temperature X-ray diffraction in the temperature range from 25 to 800 degrees C. Their thermal expansion parameters have been calculated and analyzed as functions of composition. High-density ceramics based on the Ca0.875Zr1.5Fe0.5(PO4)(2.75)(SiO4)(0.25) phosphatosilicate have been produced by spark plasma sintering and their structure and properties have been studied in detail.

引用

页码：1267 / 1273

页数：7

共 24 条

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