巻号一覧
62 巻, 12 号
December
選択された号の論文の8件中1～8を表示しています
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研究論文
受賞記念講演
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中平 敦, 沖村 厚志, 萩原 康仁, 中西 崇, 横田 勝, 井上 誠2015 年 62 巻 12 号 p. 559-566
発行日: 2015/12/15
公開日: 2015/12/26
ジャーナル オープンアクセスWe have carried out research and development of high-performance diamond abrasive grains fixed saw wire for electronic equipment material for wafer fabrication, such as solar cells for silicon and sapphire for the LED package substrate. It advances the prototype of the saw wire, to produce a product in a way that makes a commercial basis. Through these research and development activities, we report on the process that led to the production of silicon wafers for solar cells and sapphire wafers for LED package substrate using novel saw wires fixed diamond abrasive rains with solder and Ni electroplating process.抄録全体を表示PDF形式でダウンロード (1562K) -
長谷川 幹人, 上野 友之2015 年 62 巻 12 号 p. 567-574
発行日: 2015/12/15
公開日: 2015/12/26
ジャーナル オープンアクセスIn recent years, far-infrared ray camera (8 to 12 μm in wavelength) have been used in security & protection fields for pedestrians and vehicles. Zinc sulfide (ZnS) is a candidate material due to its excellent optical transmittance in the wavelength regions. We developed new net-shaped lenses based on powder metallurgical processing. The resulting sintered ZnS ceramics have high-accuracy dimensions and optical surface roughness. This process enables both forming and sintering simultaneously to be done, leading to high definition image and low cost.抄録全体を表示PDF形式でダウンロード (1153K)
研究論文
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宇都野 正史, 佐藤 岳, 金子 裕治2015 年 62 巻 12 号 p. 575-579
発行日: 2015/12/15
公開日: 2015/12/26
ジャーナル オープンアクセスSynthesis of W-type ferrite compounds without atmosphere controlling was investigated focus on the starting materials. W-type ferrite was hard to synthesize without oxygen controlling because W-type ferrite phase exists only at high temperature above 1390 °C at atmospheric pressure due to the existence of Fe2+ and Fe3+ simultaneously. Our new concept is to use M-type ferrite and Spinel ferrite as starting materials because Spinel ferrite contains bivalent and trivalent 3d metal ions. As results, W-type ferrite was simply obtained by calcining in air through the inter-diffusion between M-type ferrite and Spinel ferrite. The anisotropic W-type ferrite compounds were also obtained by aligning the c-axes of the M-type ferrite grains. We concluded that the synthesis using M-type ferrite and Spinel ferrite as starting materials is effective to generate W-type ferrite independent of kinds of bivalent 3d metal ions without oxygen controlling.抄録全体を表示PDF形式でダウンロード (817K)
受賞記念講演
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中野 貴由, 石本 卓也2015 年 62 巻 12 号 p. 580-586
発行日: 2015/12/15
公開日: 2015/12/26
ジャーナル オープンアクセスThe preferential orientation and its degree of crystallographic c-axis of biological apatite powder particles dominates bone mechanical function. Based on the importance of the apatite orientation, we are trying to elucidate the mechanisms through which the anisotropic apatite micro-arrangement forms using the regenerated bones and pathological bones including gene-modified ones. Of the many factors that possibly affect apatite orientation, in vivo stress field was found to play a significant role, therefore, applying a sound stress field onto bones is essential to induce a healthy bones that have optimally anisotropic apatite arrangement. From this perspective, bone implants should be developed targeting on the formation and maintenance of healthy apatite orientation and aggressive stress control. Anisotropic porous structure might be a promising strategy to create such implants with the novel concepts. Layer-by-layer additive manufacturing technology that fabricates products with arbitrary shape and inner structure from powdered metal materials is a powerful tool to achieve anisotropically-structured implants for inducing apatite orientation. Our research and development, clarifying bones’ functionalization mechanisms and creating highly-functionalized implants, both of which are closely connected with each other, are ongoing by utilizing powder metallurgy and biology.抄録全体を表示PDF形式でダウンロード (1164K)
本会記事
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2015 年 62 巻 12 号 p. Pref12_1-
発行日: 2015/12/15
公開日: 2015/12/26
ジャーナル オープンアクセスPDF形式でダウンロード (303K) -
2015 年 62 巻 12 号 p. Mtg12_2-Mtg12_6
発行日: 2015/12/15
公開日: 2015/12/26
ジャーナル オープンアクセスPDF形式でダウンロード (351K) -
2015 年 62 巻 12 号 p. 588-
発行日: 2015/12/15
公開日: 2015/12/26
ジャーナル オープンアクセスPDF形式でダウンロード (116K) -
2015 年 62 巻 12 号 p. Index62_1-Index62_11
発行日: 2015/12/15
公開日: 2015/12/26
ジャーナル オープンアクセスPDF形式でダウンロード (669K)
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