An adiabatic calorimeter for heat capacity measurements of small samples - The heat capacity of nonlinear optical materials KTiOPO4 and RbTiOAsO4 crystals
文献类型：期刊论文
| 作者 | Tan, ZC; Sun, GY; Song, YJ; Wang, L; Han, JR; Liu, YS; Wang, M; Nie, DZ |
| 刊名 | thermochimica acta
 |
| 出版日期 | 2000-07-03 |
| 卷号 | 352页码:247-253 |
| 关键词 | adiabatic calorimetry heat capacity nonlinear optical material KTiOPO4 RbTiOAsO4 |
| 英文摘要 | a small sample size automated adiabatic calorimeter for measuring heat capacities in the temperature range of 60-360 k has been constructed. the sample cell of the calorimeter was made of thin-walled gold-plated copper with an internal volume of 6 cm(3), equipped with a miniature platinum thermometer, surrounded by two adiabatic shields and housed in a high vacuum can. two sets of six-junction chromel-constantan thermocouples were mounted between the cell and shields to indicate the temperature difference between them. the lid of the cell was sealed to the main body with a special sealant cycleweld. the adiabatic conditions of the calorimeter cell were automatically controlled by two units of temperature controller. a mechanical pump was used to pump out the vapor of liquid nitrogen in the cryostat to obtain 60 k or even lower temperature. all the experimental data, including the electrical energy and temperature were collected and processed automatically by a personal computer with a predetermined program. the performance of the calorimeter was examined by measuring the heat capacities of alpha-al2o3. the deviations of experimental results from the smoothed curve lie within +/-0.2%, while the inaccuracy is within +/-0.5% compared with the recommended reference data. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, analytical ; chemistry, physical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | low-temperature ; synthetic sapphire ; flux growth ; range |
| 收录类别 | ISTP ; SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000087272900040 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/138795]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China 2.Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tan, ZC,Sun, GY,Song, YJ,et al. An adiabatic calorimeter for heat capacity measurements of small samples - The heat capacity of nonlinear optical materials KTiOPO4 and RbTiOAsO4 crystals[J]. thermochimica acta,2000,352:247-253. |
| APA | Tan, ZC.,Sun, GY.,Song, YJ.,Wang, L.,Han, JR.,...&Nie, DZ.(2000).An adiabatic calorimeter for heat capacity measurements of small samples - The heat capacity of nonlinear optical materials KTiOPO4 and RbTiOAsO4 crystals.thermochimica acta,352,247-253. |
| MLA | Tan, ZC,et al."An adiabatic calorimeter for heat capacity measurements of small samples - The heat capacity of nonlinear optical materials KTiOPO4 and RbTiOAsO4 crystals".thermochimica acta 352(2000):247-253. |
入库方式： OAI收割
来源：大连化学物理研究所
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