| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2007-05-08 |
| タイトル |
|
|
タイトル |
Ulitaprecision Machining Characteristics of Poly-Crystalline Germanium |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源 |
http://purl.org/coar/resource_type/c_6501 |
|
タイプ |
journal article |
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 著者 |
YAN, Jiwang
TAKAHASHI, Yasunori
TAMAKI, Jun-ichi
KUBO, Akihiko
KURIYAGAWA, Tsunemoto
SATO, Yutaka
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
Germanium is an excellent infrared optical material. 0n most occasions, singlecrystalline germanium is used as optical lens substrate because its homogeneous structure is beneficial for fabricating uniform optical surfaces. In this work, we attempt to use poly crystals as lens substrates instead of single crystals, which may lead to a significant reduction in production cost. We conducted ultraprecision cutting experiments on poly-crystanine germanium to examine the microscopic machinability. The crystal orientations of specific crystal grains were characterized, and the machining characteristics of these crystal grains including surface textures, cutting forces, and grain boundary steps were investigated under various machining conditions. It was possible to produce uniformly ductile-cut surfaces cross all crystal grains by using an extremely small undeformed chip thickness (～80nm)under negative tool rake angles (～－45°).This work indicates the possibility of fabricating high-quality infrared optical components from poly-crystalline germanium. |
| 書誌情報 |
JSME International Journal Series C
巻 49,
号 1,
p. 63-69,
発行日 2006-01
|
| 権利 |
|
|
権利情報 |
Japan Society of Mechanical Engineers, J.Yan, Y.Takahashi, J.Tamaki, A.Kubo, T.Kuriyagawa, Y.Sato, JSME International Journal Series C, 49(1), 2006, 63-69. |
| 出版者 |
|
|
出版者 |
日本機械学会 |
|
言語 |
ja |
| 著者版フラグ |
|
|
言語 |
en |
|
値 |
publisher |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
4391.pdf (7.8 MB)
