?????? ????????? ??????? ?? ?? B–P–V–W–OX/SIO2 ?????????????, ????????????? ?????????????? ????????
?????? ??????? ????????? ??????? ?? ?? B–P–V–W–OX/SIO2 ?????????????, ????????????? ?????????????? ????????. ??????????? ?????? ??????????????? ?????????? ????????????? ?? ?????? ?????????? ??????????? ??????? ??????? ? ?????????????? ? ???????? ???????.
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SiO2 materials containing different magnetic fillers are obtained by the sol-gel method. It is studied the weakening of electromagnetic radiation in the frequency range 8–11.5 GHz by the materials obtained with the use of panoramic attenuation measurers.
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??????, добавлен 30.01.2016?????? ??????? ???????? ??????????????? ?????????? ????????? ?? ?????????????? ??????????? ?????? ????????? ????? SiO2 ? ?????????? ?? ? ?????????????. ????? ??????????????? ???????????? ?????????? ????-???? ???????? ? ????????? ???????????????.
??????, добавлен 03.05.2019????? ????? ???????????? ?????? ??? ?-?-?-?? ?????????????, ? ????: SiO2, ?O2, ZrO2, SnO2 – ??2 ?? ?12?3 ?? ?? ???????????? ? ??????? ?????????? ??????????? ??????? ??????? ? ?????????????? ? ?????????? ????????? ???????. ?????????? ????? ???????????.
??????, добавлен 28.05.2020Systematic studies on the preparation of sodium silicate solutions of different compositions via the hydrothermal microwave treatment of perlite with an NaOH solution. The effect of various factors on the degree of SiO2 recovery and the reaction rate.
??????, добавлен 07.01.2017?????? ??????? ??????????? ?? ??????? ???????? ?????????? ????????? ?? ????????? ????????????????????????? ??????????. ??????????? ?????????? ?????????? ??????????? ????????? ?? ?????? ??????????????? ?? ???????? SiO2 ????????? ?? ??????????? ???????.
???????????, добавлен 28.07.2014