INDICATOR HIGH-PRESSURE

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Useful model relates to devices, used as indicator pressure in cells of high pressure with diamond anvils. Indicator for determining high pressure in cells with diamond anvils with dimensions 1-5 mm is presented monocrystal tetraborate strontium, doped bivalent rare-earth element samarium, with common formula of srb 4 o7 : sm 2 +. Indicator is obtained by solid-phase synthesis at temperature 987-993 ° with from compounds SrSO3, n 3 in3 and sm 2 about3, in mixture in stoichiometric amount. From monocrystalline indicator of srb 4 o7 : sm 2 + grinding is separated diagnostic grain size, as a rule, 10-50 mcm (Figure 3). Single monolithic grain of indicator of high pressure, installed in cell with diamond anvils, excludes diffraction from indicator on debaegrammakh , as it is displayed on them in the form of spots, that characteristic for monocrystalline compounds.