M ssbauer Spectroscopic Study on Iron and Tin in Functional Halide and Metal Glasses

目标是：1） To assemble a Mo<@4 "\@D4ssbauer spectrometer which is able to carry out Mo<@D4"@>D4ssbauer measurements in a wide temperature range， 2） To measure the Mo<@D4 "@> D4ssbauer spectra of iron and tin elements in functional halide and metal glasses in various temperatures， 3） To investigate the valence， coordination， chemical bonding states of the iron and tin elements，以及在元素和玻璃基质之间的晶格相互作用，以及4）澄清玻璃中铁和锡之间的化学状态之间的关系，以及玻璃的各种功能。1） A Mo^^"ssbauer spectrometer which permits measurements in the tempera-ture range from liquid n\gen temperature to about 500 C in any atmospheres was set up。（2）混合物中的铁的特性（fluoride ion and electron）诱导Fef_3-PbF_2-MnF_2玻璃3）F^-诱导FeF_3-和ZrF_4-基fluoride玻璃4）远红外转染FeCl_2-KCl-ZnCl_2玻璃5）半导体铁磷酸玻璃中的铁特性6）超导体诱导Sn特性SnF_2玻璃7）电子跳跃在铁钨固态溶液中混合的valence iron之间

Objective: 1) To assemble a Mo<@4"<@D4ssbauer spectrometer which is able to carry out Mo<@D4"@>D4ssbauer measurements in a wide temperature range, 2) To measure the Mo<@D4"@>D4ssbauer spectra of iron and tin elements in functional halide and metal glasses in various temperatures, 3) To investigate the valence, coordination, chemical bonding states of the iron and tin elements, and lattice interaction between the elements and glass matrices, and 4) To clarify the relationship between the chemical states of iron and tin in the glasses and the various functions of the glasses.Apparatus and research subjects: 1) A Mo^^"ssbauer spectrometer which permits measurements in the tempera-ture range from liquid nitrogen temperature to about 500゜C in any atmospheres was set up. 2) Characterization of Fe in mixed (fluoride ion and electron) conducting Fef_3-PbF_2-MnF_2 glasses 3) Vitreous state electrolysis in F^--conductive FeF_3- and ZrF_4-based fluoride glasses 4) Characterization of Fe in far-infrared transmitting FeCl_2-KCl-ZnCl_2 glasses 5) Characterization of Fe in semiconducting iron phosphate glasses 6) Characterization of Sn in superionconducting InF_3-PbF_2-SnF_2 glasses 7) Electron hopping between mixed valence iron ions in iron tungstate solid solution