-
本文采用固相烧结法制备了ZrV2-xPxO7(x=0, 0.2, 0.4, 0.6, 0.8, 1)系列材料. 粉末X射线衍射(XRD)分析表明, 所制备材料的结构为单一立方相. 应用变温拉曼光谱研究该材料相变, 变温拉曼光谱研究结果表明, 材料起始相变温度随着P5+ 替代V5+ 量的增加逐渐降低, x=0, 0.4, 0.8, 1对应的相变温度分别为383 K, 363 K, 273 K, 213 K. 热膨胀测试结果表明: 随着P替代量的增加正—负膨胀转变温度先降低后增加, x=0, 0.2, 0.4, 0.6, 0.8, 1对应的正—负膨胀转变温度分别为429 K, 403 K, 372 K, 390 K, 398 K和435 K. 本文指出了该系列材料存在两个相变过程, 为设计和制备ZrV2O7基室温附近的负热膨胀材料奠定了良好的基础.ZrV2-xPxO7 (x = 0, 0.4, 0.8, 1.0) solid solutions are prepared using a solid state reaction method. Powder X-ray diffraction (XRD) analysis reveals that the as-prepared solid solutions are of single-phase cubic type in crystal structure. Temperature dependent Raman spectroscopic studies demonstrate that the phase transition temperature of ZrV2-xPxO7 decreases with the increase of the content of P. ZrV2O7, ZrV1.6P0.4O7, ZrV1.2P0.8O7 and ZrVPO7 transform from a 3× 3× 3 superstructure to a 1× 1× 1 normal structure at about 373 K, 363 K 273 K and 213 K, respectively. The results of thermal expansion testing indicate that the temperature of positive thermal expansion changes to negative thermal expansion with the increase of P content. The temperatures of positive-to-negative thermal expansion of ZrV2-xPxO7 are 429 K, 403 K, 372 K, 390 K, 398 K and 435 K for x=0, 0.2, 0.4, 0.6, 0.8 and 1, respectively. Two phase change transformations are demonstrated in ZrV2-xPxO7 materials in our work, which is beneficial for preparing the negative thermal expansion materials at room temperature using ZrV2O7.
-
Keywords:
- negative thermal expansion /
- phase transitions /
- Raman spectroscopy
[1] Mary T A, Evans J S O, Vogt T, Sleight A W 1996 Science 272 90
[2] Evans J S O, Mary T A, Argyriou D N, Short S, Sleight A W 1997 Science 275 61
[3] Tyagi A K, Achary S N, Mathews M D 2002 J. Alloys Compd. 339 207
[4] Liang E J 2010 Recent Patents on Mat. Sci. 3 106
[5] Wang J P, Chen Q D, Liang E J 2009 The Journal of Light Scattering 21 163 (in Chinese) [王俊平, 陈庆东, 梁二军 2009光散射学报 21 163]
[6] Liang E J, Huo H L, Wang J P and Chao M J 2008 J. Phys. Chem. C 112 6577
[7] Li Z Y, Song W B, Liang E J 2011 J. Phys. Chem. C 115 17806
[8] Li Q J, Yuan B H, Song W B, Liang E J, Yuan B 2012 Chin. Phys. B DOI: 10.1088/1674-1056/21/4/
[9] Liu F S, Chen X P, Xie H X, Ao W Q, Li J Q 2010 Acta Phys. Sin. 59 3350
[10] Korthuis V, Khosrovani N, Sleight A W 1995 Series Chem. Mater 7 412
[11] Khosrovani N, Sleight A W 1997 J. Solid State Chem 132 355
[12] Khosrovani N, Korthuis V, Sleight A W 1996 Inorg. Chem. 35 485
[13] Withers R L, Evans J S O, Hanson J, Sleight A W 1998 J. Solid State Chem 137 161
[14] Withers R L, Tabira Y, Evans J S O, King I J, Sleight A W 2001 J. Solid State Chem. 157 186
[15] Hisashige T, Yamaguchi T, Tsuji T, Yamamura Y 2006 J. Ceram. Soc. Jpn. 114 607
[16] Yamamura Y, Horikoshi A, Yasuzuka S, Saitoh H, Saito K 2011 Dalton Trans. 40 2242
[17] Hemamala U L C, El-Ghussein F, Muthu D V S 2007 Solid State Commun. 141 680
[18] Petruska E A, Muthua D V S, Carlson S 2010 Solid State Commun. 150 235
[19] Sakuntala T, Aroraak, Rao Rekha 2009 Journal of the Chinese Ceramic Society 37 696
[20] Zhang G Y, Lan G X, Wang Y F 2000 Lattice Vibration Spectroscopy (Vol. 2) (Higher Education Press) p108 (in Chinese) [张光寅, 蓝国祥, 王玉芳 2000晶格振动光谱学 (高等教育出版社第108页)]
-
[1] Mary T A, Evans J S O, Vogt T, Sleight A W 1996 Science 272 90
[2] Evans J S O, Mary T A, Argyriou D N, Short S, Sleight A W 1997 Science 275 61
[3] Tyagi A K, Achary S N, Mathews M D 2002 J. Alloys Compd. 339 207
[4] Liang E J 2010 Recent Patents on Mat. Sci. 3 106
[5] Wang J P, Chen Q D, Liang E J 2009 The Journal of Light Scattering 21 163 (in Chinese) [王俊平, 陈庆东, 梁二军 2009光散射学报 21 163]
[6] Liang E J, Huo H L, Wang J P and Chao M J 2008 J. Phys. Chem. C 112 6577
[7] Li Z Y, Song W B, Liang E J 2011 J. Phys. Chem. C 115 17806
[8] Li Q J, Yuan B H, Song W B, Liang E J, Yuan B 2012 Chin. Phys. B DOI: 10.1088/1674-1056/21/4/
[9] Liu F S, Chen X P, Xie H X, Ao W Q, Li J Q 2010 Acta Phys. Sin. 59 3350
[10] Korthuis V, Khosrovani N, Sleight A W 1995 Series Chem. Mater 7 412
[11] Khosrovani N, Sleight A W 1997 J. Solid State Chem 132 355
[12] Khosrovani N, Korthuis V, Sleight A W 1996 Inorg. Chem. 35 485
[13] Withers R L, Evans J S O, Hanson J, Sleight A W 1998 J. Solid State Chem 137 161
[14] Withers R L, Tabira Y, Evans J S O, King I J, Sleight A W 2001 J. Solid State Chem. 157 186
[15] Hisashige T, Yamaguchi T, Tsuji T, Yamamura Y 2006 J. Ceram. Soc. Jpn. 114 607
[16] Yamamura Y, Horikoshi A, Yasuzuka S, Saitoh H, Saito K 2011 Dalton Trans. 40 2242
[17] Hemamala U L C, El-Ghussein F, Muthu D V S 2007 Solid State Commun. 141 680
[18] Petruska E A, Muthua D V S, Carlson S 2010 Solid State Commun. 150 235
[19] Sakuntala T, Aroraak, Rao Rekha 2009 Journal of the Chinese Ceramic Society 37 696
[20] Zhang G Y, Lan G X, Wang Y F 2000 Lattice Vibration Spectroscopy (Vol. 2) (Higher Education Press) p108 (in Chinese) [张光寅, 蓝国祥, 王玉芳 2000晶格振动光谱学 (高等教育出版社第108页)]
计量
- 文章访问数: 10375
- PDF下载量: 858
- 被引次数: 0
下载:
