Institute of Crystal Materials and State Key Laboratory of Crystal Materials,Shandong University,Ji'nan 250100(Received 18 March 2000)The data of the thermal expansion and specific heat of cadmium mercury thiocyan...Institute of Crystal Materials and State Key Laboratory of Crystal Materials,Shandong University,Ji'nan 250100(Received 18 March 2000)The data of the thermal expansion and specific heat of cadmium mercury thiocyanate crystal have been obtained.The specific heat is 0.7588J/g℃at room temperature.The thermal expansion occurs in the direction parallel to the c-axis,and the thermal contraction occurs in the direction parallel to the a-axis.The thermal expansion is the same as the thermal contraction at 353 K.The relationship between thermal properties and crystal structure is discussed.展开更多
This paper reports the growth kinetics of a new kind of organometallic complex crystal triallylthiourea mercury bromide(ATMB),investigated by in situ microscopic observation.The step trains formed by the layer growth ...This paper reports the growth kinetics of a new kind of organometallic complex crystal triallylthiourea mercury bromide(ATMB),investigated by in situ microscopic observation.The step trains formed by the layer growth mechanism have larger width(ranged from 2 to 15μm) and lower height(40-250nm).The relationship between the growth rate R and the relative supersaturationσwas obtained by directly measuring the movement of step trains of ATMB crystal in aqueous solution.The variation of growth mechanism with supersaturationσis also discussed.展开更多
基金Supported by the National Natural Science Foundation of China under Grant Nos.69890230 and 69778023the Scientific Research Foundation for Outstanding Young Scientists of Shandong Province of China.
文摘Institute of Crystal Materials and State Key Laboratory of Crystal Materials,Shandong University,Ji'nan 250100(Received 18 March 2000)The data of the thermal expansion and specific heat of cadmium mercury thiocyanate crystal have been obtained.The specific heat is 0.7588J/g℃at room temperature.The thermal expansion occurs in the direction parallel to the c-axis,and the thermal contraction occurs in the direction parallel to the a-axis.The thermal expansion is the same as the thermal contraction at 353 K.The relationship between thermal properties and crystal structure is discussed.
基金Supported by the National Natural Science Foundation of China,。
文摘This paper reports the growth kinetics of a new kind of organometallic complex crystal triallylthiourea mercury bromide(ATMB),investigated by in situ microscopic observation.The step trains formed by the layer growth mechanism have larger width(ranged from 2 to 15μm) and lower height(40-250nm).The relationship between the growth rate R and the relative supersaturationσwas obtained by directly measuring the movement of step trains of ATMB crystal in aqueous solution.The variation of growth mechanism with supersaturationσis also discussed.
