2009-01-012024-05-15https://scholars.lib.ntu.edu.tw/handle/123456789/666195摘要：材料科學與工程教育除了培養材料物理與材料化學的基礎科學人才外，同時培育材料工程應用人才。材料的特性和其微結構息息相關，穩定的材料系統處於能量最低的狀態，此時每個組成原子對系統熱力學參數的貢獻，所表現出來的系統總自由能的大小可以決定系統的相平衡。調控外在變因（如溫度和壓力）與組成系統成分可以控制系統相變化至另一穩定的相組成。相組成的調控便可改變材料的特性。所以，材料相變態一個材料基礎學科，同時亦是綜合各種材料反應的高度整合學科。從原子結構、鍵結與堆疊、晶體結構描述與鑑定、熱力學系統與性質、擴散、界面種類與能量，本計畫第一年已建立大學低年級學生具有研究固態材料相變態的基礎。同時，以電化學沈積非晶質鎳磷與鎳鎢合金。今年（98年度）將對非晶質鎳磷與鎳鎢合金進行熱處理，以研究非晶質合金結晶動力學。最後比較非晶質、奈米晶與微米晶合金的物性與化性的差異。<br> Abstract: Materials science and engineering education deals with both the basic science such as materials chemistry and physics, as well as the application of materials. The properties of materials are best related to their microstructure. A stable materials system has the lowest energy, which is determined by the atomic average of related thermodynamics properties. The equilibrium of a system is reached when the system has a lowest free energy that is generally a function of external influences (temperature and pressure) and the composition of the various components in the system. The various phases in an equilibrium system contribute to the overall properties of the system. Phase transformation is a basic course for materials science students, and perhaps a highly-integrated course related to different materials reactions. Starting from atomic structure, bonding and stacking, description and characterization of crystal structure, materials thermodynamic systems and properties, diffusion, and energy of the various interfaces, this project is primarily for the freshman and sophomore students to establish their ability for phase transformation researches. Amorphous NiP and NiW alloys have been fabricated via electroplating. During the second-year period, these alloys will be subjected to different extents of heat treatments so that the evolution of amorphous to crystalline transformation can be followed. The crystallinity of NiP and NiW alloys can, thus, be tailored, giving rise to the alloys with crystallities ranging from nano- to micro-meters. Finally, the physical and chemical properties of these materials with distinct cyrstallinity are measured.固態相變態材料熱力學擴散非晶質奈米晶粒solid state phase transformationmaterials thermodynamicsdiffusionamorphousnano-sized grains