Preparation and properties of Zr2WP2O12 with negative thermal expansion without sintering additives
Zirconium tungsten phosphate (Zr2WP2O12 denoted as ZWP) is a negative thermal expansion material which can be used as filler in controlling the thermal expansion coefficient of other materials. In this study, dense ZWP ceramics without any additives was prepared via solid-state reaction method, by m...
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University of Novi Sad
2020-05-01
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| Series: | Processing and Application of Ceramics |
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| Online Access: | http://www.tf.uns.ac.rs/publikacije/PAC/pdf/PAC%2048%2012.pdf |
| _version_ | 1819095504479322112 |
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| author | Xin Wei Shi Qiang Zhou Xiaosheng Yan Xingrui Li Bailin Zhu |
| author_facet | Xin Wei Shi Qiang Zhou Xiaosheng Yan Xingrui Li Bailin Zhu |
| author_sort | Xin Wei Shi |
| collection | DOAJ |
| description | Zirconium tungsten phosphate (Zr2WP2O12 denoted as ZWP) is a negative thermal expansion material which can be used as filler in controlling the thermal expansion coefficient of other materials. In this study, dense ZWP ceramics without any additives was prepared via solid-state reaction method, by milling the as-synthesized powder for different times and sintering at 1300 °C. The influence of the milling time, i.e. reduced particle sizes, on properties of the Zr2WP2O12 was investigated. The obtained samples were characterized by X-ray diffraction (XRD) method, scanning electron microscopy (SEM), thermal mechanical analysis (TMA), Raman spectroscopy and Vickers hardness tester. The results showed that the milled powders have high crystallinity with single phase orthorhombic structure. The ZWP ceramics exhibits NTE property with high density. With the increase of milling time the coefficient of thermal expansion changed from −2.607 × 10−6 1/K to −3.914 × 10−6 1/K. In addition, the grain sizes decrease and the relative density and HV hardness of the obtained ceramics increase confirming that grinding is an effective method to improve the performance of ZWP ceramics. |
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| id | doaj.art-e37b7f957f104bb8ba0a5b4aca7e76ff |
| institution | Directory Open Access Journal |
| issn | 1820-6131 2406-1034 |
| language | English |
| last_indexed | 2024-12-21T23:44:21Z |
| publishDate | 2020-05-01 |
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| series | Processing and Application of Ceramics |
| spelling | doaj.art-e37b7f957f104bb8ba0a5b4aca7e76ff2022-12-21T18:46:09ZengUniversity of Novi SadProcessing and Application of Ceramics1820-61312406-10342020-05-0114217318010.2298/PAC2002173SPreparation and properties of Zr2WP2O12 with negative thermal expansion without sintering additivesXin Wei Shi0Qiang Zhou1Xiaosheng Yan2Xingrui Li3Bailin Zhu4School of Physics and Microelectronics, Zhengzhou University, Henan 450001, PR ChinaSchool of Physics and Microelectronics, Zhengzhou University, Henan 450001, PR ChinaSchool of Physics and Microelectronics, Zhengzhou University, Henan 450001, PR ChinaSchool of Materials Science and Engineering, Zhengzhou University, Henan 450001, PR ChinaState Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, PR ChinaZirconium tungsten phosphate (Zr2WP2O12 denoted as ZWP) is a negative thermal expansion material which can be used as filler in controlling the thermal expansion coefficient of other materials. In this study, dense ZWP ceramics without any additives was prepared via solid-state reaction method, by milling the as-synthesized powder for different times and sintering at 1300 °C. The influence of the milling time, i.e. reduced particle sizes, on properties of the Zr2WP2O12 was investigated. The obtained samples were characterized by X-ray diffraction (XRD) method, scanning electron microscopy (SEM), thermal mechanical analysis (TMA), Raman spectroscopy and Vickers hardness tester. The results showed that the milled powders have high crystallinity with single phase orthorhombic structure. The ZWP ceramics exhibits NTE property with high density. With the increase of milling time the coefficient of thermal expansion changed from −2.607 × 10−6 1/K to −3.914 × 10−6 1/K. In addition, the grain sizes decrease and the relative density and HV hardness of the obtained ceramics increase confirming that grinding is an effective method to improve the performance of ZWP ceramics.http://www.tf.uns.ac.rs/publikacije/PAC/pdf/PAC%2048%2012.pdfzr2wp2o12negative thermal expansionparticle sizemilling timesintering |
| spellingShingle | Xin Wei Shi Qiang Zhou Xiaosheng Yan Xingrui Li Bailin Zhu Preparation and properties of Zr2WP2O12 with negative thermal expansion without sintering additives Processing and Application of Ceramics zr2wp2o12 negative thermal expansion particle size milling time sintering |
| title | Preparation and properties of Zr2WP2O12 with negative thermal expansion without sintering additives |
| title_full | Preparation and properties of Zr2WP2O12 with negative thermal expansion without sintering additives |
| title_fullStr | Preparation and properties of Zr2WP2O12 with negative thermal expansion without sintering additives |
| title_full_unstemmed | Preparation and properties of Zr2WP2O12 with negative thermal expansion without sintering additives |
| title_short | Preparation and properties of Zr2WP2O12 with negative thermal expansion without sintering additives |
| title_sort | preparation and properties of zr2wp2o12 with negative thermal expansion without sintering additives |
| topic | zr2wp2o12 negative thermal expansion particle size milling time sintering |
| url | http://www.tf.uns.ac.rs/publikacije/PAC/pdf/PAC%2048%2012.pdf |
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