Development of Novel Cemented Carbide for Overcoming Rare Metal Crisis by Preparing Nano-Meso Structure-Controlled Tungsten Carbide
Project/Area Number |
21560751
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Material processing/treatments
|
Research Institution | University of Hyogo |
Principal Investigator |
MORISHITA Masao 兵庫県立大学, 大学院・工学研究科, 教授 (60244696)
|
Co-Investigator(Kenkyū-buntansha) |
YAMAMOTO Hiroaki 兵庫県立大学, 大学院・工学研究科, 准教授 (40326301)
|
Project Period (FY) |
2009 – 2012
|
Project Status |
Completed (Fiscal Year 2012)
|
Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
|
Keywords | 粉末プロセス / 粉末冶金 / 溶液法 / 気相炭化法 / 二酸化炭素 / アルミニウム廃材 / 省資源 / リサイクル / ナノ構造 / 都市鉱山 / 超硬合金 / タングステン / 炭化物原料 / 新規プロセス / ナノ・メゾ構造 |
Research Abstract |
The WC involving the nano metal cobalt domains has been prepared by a gas-solid reaction between the cobalt non-equilibrium super saturated-tugsten powder and carbon mono-oxide gas (CO). The metal Co domains formed in the WC were found to be spherical with a diameter of approximately 60 nm by observing the microstructure with a high resolution transmission electron microscope. The tungsten less-hard metal prepared from the WC involving the nano metal cobalt domains shows high performance, resulted from its nano-scaled fine structure. Recyle of W and Co from the present hard metal is advantageous due to that it is composed of only WC and Co.
|
Report
(5 results)
Research Products
(20 results)