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Copyright of Progress in Modern Biomedicine is the property of Publishing House of Progress in Modern Biomedicine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Jilin University (Science Edition) / Jilin Daxue Xuebao (Lixue Ban) is the property of Zhongguo Xue shu qi Kan (Guang Pan Ban) Dian zi Za zhi She and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Jilin University (Science Edition) / Jilin Daxue Xuebao (Lixue Ban) is the property of Zhongguo Xue shu qi Kan (Guang Pan Ban) Dian zi Za zhi She and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Sc2W3O12 powder was synthesized at low temperature visa chemical co-precipitation method. The phase composition, crystal structure and morphology of the samples were investigated by using the thermo gravimetry (TG). differential scanning calorimeter (DSC). X-ray diffractometer (XRD), Raman spectrometer (Raman), high resolution transmission electron microscope (TEM). energy dispersive X-ray spectroscopy (EDX) and scanning electron microscope (SEM). respectively. The negative thermal expansion properties of Se, W,Ou were analyzed by using the high temperature XRD. The results indicate that orthorhombic Sew Op5 was successfully synthesized by henting the precursor at 200 r, and the precursor was prepared in the solution with a pH value of 7. Low temperature synthesis of Sc2W3O12 with high purity was realized through co-precipitation method. Sc2W3O12 showed anisotropik negative thermal expansion properties in 25-500 t. and the coefficients of thermal expansion (CTES) along band c axes were -8.21×10-6℃-1,1.13×10-6℃-1 and -6.05 ×10-6℃-1, respectively. The intrinsic volumetric CTE C ) was Sai was -1.37% 10 Gay = 30). 13.12 X 10 5T and the linear CTE (αl)was-4.37×10-6℃-1(αV = 3αl). [ABSTRACT FROM AUTHOR]