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Kiichi Oda Hirohide Yata Tetsuo Yoshio Kazuo O-Oka Kohei Oda 《Journal of Materials Science》1986,21(2):637-642
Ta100-x
B
x
alloy films were prepared by r.f.-sputtering in the chemical composition range 45 x 77. Ta100-x
B
x
(45 x 58) films consist of the amorphous phase, while the TaB2 crystal phase was observed in Ta100-x
B
x
(66 x 77) films. A remarkable preferred orientation with the (001) plane of TaB2 parallel to the film surface was observed in Ta34B66. The d.c. electrical conductivity of Ta100-x
B
x
(45 x 77) films decreases with increasing boron content in the range 6.7 × 103 to 1.3 × 103–1 cm–1. The micro-Vickers hardness of Ta100-x
B
x
(45 x 77) films was in the range 2200 to 2600 kg mm–2. 相似文献
2.
BetaSi3 N4 coatings were obtained by chemical vapor deposition in a fused-silica reaction tube by outside heating of the system SiCl4 -NH3 -N2 at a deposition temperature (reaction tube temperature) of 1300°C, whereas α- and α+β-phase coatings were obtained at depositon temperatures of 1150° and 1250°C, respecively. Formation of β-phase coatings at relatively low temperatures is explained in terms of the effect of a catalytic impurity, SiO vapor from the reaction tube. The X-ray diffraction patterns and sulface morphologies of the coatings were studied. 相似文献
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4.
Kiichi Oda Hirohide Yata Tetsuo Yoshio Kazuo O-Oka Kohei Oda 《Journal of Materials Science》1986,21(10):3648-3652
Nb100−x
B
x
alloy films were prepared by the r.f.-sputtering method in the chemical composition range of 30 ≦x ≦ 76. Nb100−x
B
x
(30 ≦x ≦ 54) films consisted of the amorphous state, and NbB2 crystal phase was observed on Nb100−xBx (67 ≦x ≦ 76) films. A remarkable preferred orientation with the (001) plane of NbB2 in parallel to the film surface was observed on Nb33B67 film. d.c. electrical conductivity of Nb100−xBx (30 ≦x ≦ 76) films decreased with increasing content of boron in the range from 7.3×103 to 7.6 ×102Ω−1cm−1. Micro-Vickers hardness of Nb100−x
B
x
(30 ≦x ≦ 76) films exhibited the values of 1070 to 2060 kg mm2. 相似文献
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