FIELD: construction.
SUBSTANCE: low-temperature glass-ceramic material contains low-temperature crystallising glass and ceramics at the ratio of (1.2-1.0) and (0.8-1.0) accordingly. Low-temperature crystallising glass contains the following components, wt %: Al2O3 - 2.0-8.0; SiO2 - 17.0-7.0; B2O3 - 3.2-12.5; CaO - 22.0-11.0; MgO - 4.2-3.5; SrO-0.4-2.5; Cu2O - 0.4-1.5; ZrO - 1.8-0.5; ZnO - 9.0-3.5.
EFFECT: reduced value of tangent of dielectric losses of SHF, higher specified volume electric resistance, with preservation of low annealing temperature and high mechanical strength of glass-ceramic material.
1 cl, 1 tbl, 10 ex
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