单词 | network modifier |
释义 | > as lemmasnetwork modifier network modifier n. (a substance containing) a metal ion which can occupy an interstice in the network structure of a glass (see sense A. 2d). ΘΚΠ the world > matter > chemistry > chemical substances > [noun] > types by properties agent1624 analyser1661 pyrophorus1734 pyrophore1788 frigoric1812 diffusate1850 diffusant1867 cryogen1875 metachrome1876 carrier1902 getter1912 active1918 network former1947 network modifier1947 radiosensitizer1953 monophase1968 1947Network modifier [see network former n.]. 1960 Proc. Royal Soc. 258 36 The control of the effect by the addition of magnesium, calcium and barium compounds (which act as network modifiers) to reduce expansion has been fully investigated. 1971 Materials & Technol. II. vi. 335 Aluminium, when in tetrahedral coordination..is undoubtedly a network former, and when in octahedral configuration it is a network modifier. 1990 Jrnl. Petrol. 31 1280 The alkali/alumina ratio approaches unity.., implying that all Na and K are used to charge-balance tetrahedral Al and thus cannot serve as network modifiers. < as lemmas |
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