联想
发表于 2025-3-28 17:38:04
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新鲜
发表于 2025-3-28 20:13:24
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没血色
发表于 2025-3-28 23:14:16
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Dendritic-Cells
发表于 2025-3-29 05:58:50
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kindred
发表于 2025-3-29 07:50:53
Separation of Alloyed Chromium Carbides of the Cr2C (Metastable) and Cr23C6 or Cr7C3 Types Isolatede or nitride phases with a widely varying composition, of the Me.C or Me.N type, having a hexagonal crystal structure. The temperature range of stability of these phases in steels and alloys depends on the particular form of alloying involved. These phases often occur with other carbide or nitride p
GRILL
发表于 2025-3-29 15:03:08
Chemical and Electrochemical Methods of Separating the Carbides MeC and the Carbonitrides Me(C,N) o the superposition of a current differs from the interaction of the carbides and nitrides of Group VI–VIII metals. This fact enables us to isolate individual carbides MeC or nitrides MeN from mixtures of carbides or nitrides, or from steels and alloys containing these phases. It is a more complicate
Substance-Abuse
发表于 2025-3-29 15:34:14
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Lyme-disease
发表于 2025-3-29 23:26:18
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菊花
发表于 2025-3-30 00:38:43
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Throttle
发表于 2025-3-30 07:12:40
Method of Quantitative X-Ray Analysis for Determining the Amount of Free Carbon in Boron Carbide,mposition given by the formula B.C, while the C. is the proportion of the carbon actually free . The assumption as to the constant composition of the carbon and boron carbide leads to a second assumption, namely, that the properties of the two phases, and in particular their oxidizability, remain constant.