Preparation and Characterization of Amorphous/Nanocrystalline Composite Structural Materials(II)

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基本資料

Project title

Code/計畫編號

NSC95-2623-7019-001-D

Translated Name/計畫中文名

非晶/奈米複合結構金屬材料技術開發(II)

Project Coordinator/計畫主持人

Pee-Yew Lee

Funding Organization/主管機關

National Science and Technology Council

Department/Unit

Department of Optoelectronics and Materials Technology

Website

https://www.grb.gov.tw/search/planDetail?id=1176106

Year

2006

Start date/計畫起

01-01-2006

Expected Completion/計畫迄

31-12-2006

Bugetid/研究經費

600千元

ResearchField/研究領域

材料科技

"本研究擬以真空鑄造或離心鑄造方式來進行具非晶╱奈米複合材結構的金屬玻璃合金塊材及板材的製作，塊材的製作以真空鑄造方式進行，而離心鑄造將應用於板材的熔製，塊材及板材內部的非晶╱奈米複合材結構之獲取可經由在真空或離心鑄造過程中，藉由調節熔液注入模穴時的冷卻速率，進而達到精準控制結晶相於冷卻過程中，在鑄件內析出的含量高低，既在高冷卻速率下可獲得塊狀非晶質合金，而在較低的不同冷卻速率下，則可得到不同體積比之奈米級析出物結晶相的塊狀非晶/奈米晶合金或塊狀奈米晶合金，具此三種不同結構之塊材再將其車製成穿甲彈頭後，以標準美軍規範進行槍擊試驗，藉此探討非晶/奈米晶合金製造之穿甲彈彈頭的穿甲性能，所得數據將可應用於評估以非晶/奈米晶合金製造穿甲彈彈頭之可行性並完成相關能量資料庫之建立；另對真空鑄造方式製作的板材則將以X-ray、DSC、SEM、TEM 進行分析以瞭解製作具非晶╱ 奈米複合材結構板材所須的製備參數。" "The aim of this project is to investigate the feasibility of preparing bulk or plate shape amorphous/nanocrystalline alloys by casting techniques. The bulk sample will be fabricated by using vacuum casting process while the plate specimen will be formed by employing a centrifugal casting equipment. The fabrication of bulk or plate amorphous/nanocrystalline alloy with different ratio of nanocrystalline phases can be performed by precisely control the required cooling rates when the melt was poured into the mold during solidification period. The specimen with fully nanocrystalline structure can be obtained with slow cooling rate and with increasing cooling rate; either amorphous/nanocrystalline or fully amorphous phase will be formed. The structure and selected properties of all the samples prepared will be studied by X-ray, DSC, SEM and TEM/HRTEM examination. In addition, the successfully prepared bulk samples with different microstructures will be machined into projector. The ballistic impact test based on the US army standard procedures will be employed to evaluate the armor-piercing ability of the projectors. After comprehensive evaluation of all the experimental results obtained in this work, the optimum conditions for the production of armor-piercing projector by using bulk amorphous/nanocrystalline can be established."

DSpace CRIS

Preparation and Characterization of Amorphous/Nanocrystalline Composite Structural Materials(II)

基本資料

Description