HIGH-TEMPERATURE STUDIES

The results of the research activity during the last 3 years in the field of high temperature mass spectrometry are given under the following headings: Metals and Alloys; Oxides and Oxide Systems; Halides and Halide Systems; Carbides, Chalcogenides, Hydroxides, Salts of Oxyacids and Others; Negative Ions and Combined Ion Source; High Temperature Mass Spectrometry Without Knudsen Cell; Miscellaneous. A description of the results of conventional methods is given in the first four sections. In the next section the facilities of the combined ion source are discussed, which permits the measurement of ion/ion, ion/molecule and molecule/molecule equilibrium constants in high temperature systems by the use of Knudsen cell mass spectrometry. The last section deals mainly with the laser evaporation of refractory materials.