The flame quenching process has been employed to modify the surfaces of a commercial marine propeller material, aluminum bronze alloy (Cu9Al5Ni5Fe), and the material's microstructure and hardness properties have been studied. The thermal history was accurately monitored during the process at various...
Fe、Al、Cu能与许多其它金属形成金属互化物,Cu9Al4就是其中一种重要的金属互化物,回答下列问题.(1)Cu9Al4具有自范性,原子在三维空间里呈周期性有序排列,Cu9Al4属于___(填“晶体”或“非晶体”)(2)Fe、Al、Cu三种元素基态原子中未成对电子最多的是___(填元素符号).(3)Cu9Al4与盐酸反应后生成AlCl3...
Chalcophyllite, Cu9Al(AsO4)2(SO4)1.5(OH)l2 路 18 H2O, crystallizes in space group R[unk] with ahex = 10.756 and chex = 28.678脜. The structure was determin... Sabelli,C. - 《Zeitschrift Für Kristallographie》 被引量: 17发表: 1980年 砷铜矾的发现与研究 08, suggestingan ideal ch...
Dimensions A:3.38" (85.9mm) B:1.94" (49.3mm) C:2.93" (74.4mm) See Mechanical Drawing for detailed dimensions "2-800T" 800 kcmilDouble wire lug, 800-300 kcmil / MCM wire range, double barrel, aluminum Lug, aluminum or copper wire, CU9AL, 90C temperature rating, 1 mounting hole for...
铝及其化合物在生产、生中用途广泛。回答下列问题:(1)在一定条件下,金属Al和Cu可以形成金属互化物Cu9Al4,基态Al原子核外电子有___种不同的运动状态。基态C
Reactive milling of Cu-hydroxycarbonate - powder aluminium mixture brings many complex chemical reactions such as decomposition, aluminothermic reduction and mechanical alloying resulting in the formation of nanometer size composites that contain intermetallic phases, γ-Cu 9 Al 4 and θ-CuAl 2 , with...
ⅢA族Al、In、Ga为3,ⅣA族Si、Ge、Sn、Pb为4,等等,而电子数与原子数之比有三种基本类型:3:2,21:13和7:4,由此可以理解如CuZn、Ag3Al、Cu9Al4、Cu3Sn等等金属化合物的组成。上述三类电子化合物各具有特定结构,分别成为β,γ和ε相。例如,Cu5Zn8术21:13型电子化合物,是一种很大...
Solid state reactions between CuO and Cu–14 at.%Al solid solution or Cu 9Al 4 intermetallic compound during high energy mechanical milling or during heating mechanically milled CuO/Cu(Al) and CuO/Cu 9Al 4 composite powders have been investigated. It was found that during milling the reaction...
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