A Pressure-Induced Phase Transition Study of -BaB2O4 Crystal by X-Ray Diffraction

GU Hui-Cheng; CHEN Liang-Chen; LI Feng-Ying; CHE Rong-Zheng; CHEN Hong; WANG Ji-Fang; LIN Yuan-Kun; LAN Guo-Xiang

doi:10.11858/gywlxb.1995.01.011

Volume 9 Issue 1

Jun 2015

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Article Contents

Chinese Journal of High Pressure Physics > 1995 > 9(1): 69-73 .

GU Hui-Cheng, CHEN Liang-Chen, LI Feng-Ying, CHE Rong-Zheng, CHEN Hong, WANG Ji-Fang, LIN Yuan-Kun, LAN Guo-Xiang. A Pressure-Induced Phase Transition Study of -BaB2O4 Crystal by X-Ray Diffraction[J]. Chinese Journal of High Pressure Physics, 1995, 9(1): 69-73 . doi: 10.11858/gywlxb.1995.01.011

Citation:

GU Hui-Cheng, CHEN Liang-Chen, LI Feng-Ying, CHE Rong-Zheng, CHEN Hong, WANG Ji-Fang, LIN Yuan-Kun, LAN Guo-Xiang. A Pressure-Induced Phase Transition Study of -BaB2O4 Crystal by X-Ray Diffraction[J]. Chinese Journal of High Pressure Physics, 1995, 9(1): 69-73 . doi: 10.11858/gywlxb.1995.01.011

Citation:

GU Hui-Cheng, CHEN Liang-Chen, LI Feng-Ying, CHE Rong-Zheng, CHEN Hong, WANG Ji-Fang, LIN Yuan-Kun, LAN Guo-Xiang. A Pressure-Induced Phase Transition Study of -BaB2O4 Crystal by X-Ray Diffraction[J]. Chinese Journal of High Pressure Physics, 1995, 9(1): 69-73 . doi: 10.11858/gywlxb.1995.01.011

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A Pressure-Induced Phase Transition Study of -BaB2O4 Crystal by X-Ray Diffraction

doi: 10.11858/gywlxb.1995.01.011

1.
Institute of Physics, Academia Sinica, Beijing 100080, China;
2.
Department of Physics, Nankai University, Tianjin 30007, China

More Information

Corresponding author: GU Hui-Cheng
Received Date: 19 Mar 1993
Rev Recd Date: 09 May 1994
Publish Date: 05 Mar 1995

Abstract

Abstract

Phase transitions of -BaB2O4 crystal have been studied by using X-ray powder diffraction technique with a diamond anvil cell (DAC) at high pressure up to 17.6 GPa. According to the X-ray diffraction results, -BaB2O4 crystal undergoes three pressure-induced phase transitions neat 2.2 GPa, 5.3 GPa, 11.5 GPa, respectively. The phase transitions are reversible below 11.5 GPa. -BaB2O4 becomes amorphous and the phase transition is irreversible above 11.5 GPa.
- barium metaborate (-BBO),
- pressure-induced phase transition,
- X-ray diffraction,
- diamond anvil cell