摘要Effect of pressure on thermal behavior of KDP crystals is investigated by using the in-situ infrared reflective spectra. Compared with that under normal atmosphere, the onset temperature of decomposition under pressure of 1 MPa is improved to from 210 °C to 213 °C, suggesting that the thermal stability of KDP is enhanced. Under pressure of 2 MPa, the thermal stability is deteriorated and KDP begins to decompose at 183 °C. Under normal atmosphere KDP decomposes in route of translating to K4P2O7 firstly, and then to KPO3. Under pressures of 1 MPa and 2 MPa, KDP translates to KPO3 directly without any other polymeric intermediates.
Abstract：Effect of pressure on thermal behavior of KDP crystals is investigated by using the in-situ infrared reflective spectra. Compared with that under normal atmosphere, the onset temperature of decomposition under pressure of 1 MPa is improved to from 210 °C to 213 °C, suggesting that the thermal stability of KDP is enhanced. Under pressure of 2 MPa, the thermal stability is deteriorated and KDP begins to decompose at 183 °C. Under normal atmosphere KDP decomposes in route of translating to K4P2O7 firstly, and then to KPO3. Under pressures of 1 MPa and 2 MPa, KDP translates to KPO3 directly without any other polymeric intermediates.
DING Jian-Xu;WANG Tao;WANG Sheng-Lai**;CUI De-Liang**;MU Xiao-Ming;XU Xin-Guang
. Effect of Pressure on Thermal Stability and Decomposition of KDP Crystal[J]. 中国物理快报, 2011, 28(2): 26402-026402.
DING Jian-Xu, WANG Tao, WANG Sheng-Lai**, CUI De-Liang**, MU Xiao-Ming, XU Xin-Guang
. Effect of Pressure on Thermal Stability and Decomposition of KDP Crystal. Chin. Phys. Lett., 2011, 28(2): 26402-026402.
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