Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1979. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND SCIENCE. / Bibliography: leaves 252-265. / Ph.D.

Fe-B熔體可鑄造成網絡狀合金的微觀結構。研究顯示，熔融狀態的Fe₈₄B₁₆在275 K 過冷時將發生形態轉變。實驗結果指出熔融狀態的Fe-B合金存在一亞穏液態互溶區。該互溶區範圍為Fe₈₄B₁₄.到Fe₈₂B₁₈.。Fe-B網絡狀合金的微觀結構，由一個易碎的Fe₃B子網絡和一個具延展性的αFe子網絡組成。因此Fe-B網絡狀合金擁有具吸引性的物理性能。 / 由於Fe₈₄B₁₆網絡狀合金並不存在任何微孔，因此我們可推斷合金在結晶的過程中，兩個子網絡的固體/液體界面將一起生長。而且，在固體/液體界面前並不具有硼原子的濃度梯度。因此我們提出了一個生長模型來分析Fe-B網絡狀合金來自掃瞄電子顯微鏡和透射電子顯微鏡的檢測結果。Fe-B網絡狀合金的結晶動力學和微觀結構均得到解釋。研究顯示，合金中的兩個子網絡均擁有特定的生長方向，並且以樹枝晶的方式來生長。 / Molten Fe₁₀₀-{U+2093}B{U+2093} melts, where x = 14 to 18, can be cast into ingots of network morphology. It was found that there is a morphological transition in molten Fe₈₄B₁₆.with undercooling of 275 K. The experimental results indicate that there is a metastable liquid miscibility gap in undercooled Fe-B melts. The network morphology consists of two interconnected subnetworks, which are αFe subnetwork and Fe₃B subnetwork respectively. The Fe-B network alloys have attractive mechanical properties. / As micropore does not exist in the Fe₈₄B₁₆ network ingot, it is proposed that the solid/liquid interfaces of the two subnetworks advance together during solidification. In addition, there is no composition gradient of boron atoms at the growth front. A growth model is proposed to explain the results by scanning electron microscopy and transmission electron microscopy. It was found that there is special crystallinity in Fe₈₄B₁₆ network ingots. / Detailed summary in vernacular field only. / Detailed summary in vernacular field only. / Wong, Tak Cheung = 鐵硼網狀合金的形成和結晶動力學 / 黃德彰. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2012. / Includes bibliographical references. / Abstracts also in Chinese. / Wong, Tak Cheung = Tie peng wang zhuang he jin de xing cheng he jie jing dong li xue / Huang Dezhang. / Abstract --- p.ii / Acknowledge --- p.iv / List of Table --- p.vii / List of Figures --- p.viii / Chapter Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Phase diagram --- p.1 / Chapter 1.1.1 --- Undercooling --- p.1 / Chapter 1.2 --- Nucleation and Growth --- p.2 / Chapter 1.2.1 --- Homogeneous Nucleation --- p.3 / Chapter 1.2.2 --- Heterogeneous Nucleation --- p.3 / Chapter 1.2.3 --- Growth --- p.6 / Chapter 1.2.3.1 --- Growth of Pure Metal --- p.6 / Chapter 1.2.3.2 --- Solid/Liquid interface stability --- p.7 / Chapter 1.2.3.3 --- Solidification of Single Phase Binary Alloys --- p.8 / Chapter 1.2.3.3.1 --- Equilibrium Solidification --- p.8 / Chapter 1.2.3.3.2 --- Non-Equilibrium Solidification --- p.8 / Chapter 1.2.3.3.3 --- Morphology Change --- p.9 / Chapter 1.2.3.4 --- Solidification of the Binary Eutectic Alloy --- p.10 / Chapter 1.2.3.4.1 --- Growth of Lamellar Eutectics --- p.10 / Chapter 1.2.3.4.2 --- Off-Eutectic Alloys --- p.11 / Chapter 1.3 --- Binary Systems with a Solid Miscibility Gap --- p.11 / Chapter 1.4 --- Phase Separation Mechanisms in a Solid Miscibility Gap --- p.12 / Chapter 1.4.1 --- Nucleation and Growth --- p.12 / Chapter 1.4.2 --- Spinodal Decomposition --- p.13 / Chapter 1.4.4.1 --- The initiation of Spinodal Decomposition --- p.13 / Chapter 1.4.4.2 --- Diffusion Equation of Spinodal Decomposition --- p.14 / Chapter 1.4.4.3 --- Solution to the Modified Diffusion Equation --- p.17 / Figures --- p.18 / References / Chapter Chapter 2 --- Experimental --- p.29 / Chapter 2.1 --- Preparation of fused silica tube --- p.29 / Chapter 2.2 --- Alloying and fluxing --- p.29 / Chapter 2.3 --- Undercooling --- p.30 / Chapter 2.4 --- Sample Preparation --- p.31 / Chapter 2.4.1 --- Cutting, Grinding and Polishing --- p.31 / Chapter 2.4.2 --- Sample preparation for Scanning Electron Microscopy (SEM) --- p.32 / Chapter 2.4.3 --- Sample preparation for Transmission Electron Microscopy (TEM) --- p.32 / Chapter 2.5 --- Microhardness Test --- p.33 / Chapter 2.6 --- Compression Test --- p.33 / Chapter 2.7 --- Microstructure Analysis --- p.34 / Chapter 2.7.1 --- Scanning Electron Microscopy Analysis --- p.34 / Chapter 2.7.2 --- Transmission Electron Microscopy Analysis --- p.34 / Chapter 2.7.3 --- Indexing Diffraction Patterns --- p.34 / Figures --- p.36 / Chapter Chapter 3 --- Formation of Fe-B network alloys --- p.38 / Chapter 3.1 --- Abstract --- p.38 / Chapter 3.2 --- Introduction --- p.39 / Chapter 3.3 --- Experimental --- p.40 / Chapter 3.4 --- Results --- p.42 / Chapter 3.5 --- Discussion --- p.47 / Chapter 3.6 --- Conclusions --- p.48 / Figures --- p.50 / References --- p.69 / Chapter Chapter 4 --- SEM and TEM studies of Fe84B16 70 alloys of network morphology --- p.70 / Chapter 4.1 --- Abstract --- p.70 / Chapter 4.2 --- Introduction --- p.71 / Chapter 4.3 --- Background --- p.71 / Chapter 4.4 --- Experimental --- p.73 / Chapter 4.5 --- Results --- p.74 / Chapter 4.6 --- Discussions --- p.81 / Chapter 4.7 --- Conclusions --- p.85 / Figures --- p.87 / References --- p.106

Cheng, Lai Fung. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2009. / Includes bibliographical references (leaf 79). / Abstracts in English and Chinese. / Cheng, Lai Fung. / Chapter Chapter1 --- Introduction --- p.1 / Chapter 1.1 --- Phase diagram determination --- p.1 / Chapter 1.2 --- Formation of a hump in the free energy curve of L in a eutectic alloy --- p.2 / Chapter 1.3 --- Spinodal decomposition --- p.2 / Chapter 1.4 --- Early experience --- p.3 / Chapter 1.5 --- Bulk metallic glasses (BMG) --- p.5 / Chapter 1.6 --- Metal matrix composites (MMC) --- p.6 / Chapter 1.7 --- Liquid state phase separation and the formation of metal matrix comosites by fluxing --- p.6 / Chapter Chapter2 --- Experimental --- p.15 / Chapter 2.1 --- Introduction --- p.15 / Chapter 2.2 --- Preparation of fused silica tube --- p.15 / Chapter 2.3 --- Sample Preparation --- p.16 / Chapter 2.3.1 --- Alloying --- p.16 / Chapter 2.3.2 --- Fluxing --- p.16 / Chapter 2.4 --- Liquidus of Fe-C-Si specimens --- p.16 / Chapter 2.5 --- Microstructure Analysis --- p.17 / Chapter 2.6 --- Mechanical properties --- p.18 / Chapter 2.6.1 --- Hardness test --- p.18 / Chapter 2.6.2 --- Compressive strength --- p.18 / Chapter Chapter3 --- Formation and mechanical properties of Fe86Si14 network alloys --- p.23 / Chapter 3.1 --- Abstract --- p.23 / Chapter 3.2 --- Introduction --- p.24 / Chapter 3.3 --- Experimental --- p.25 / Chapter 3.4 --- Results --- p.27 / Chapter 3.5 --- Discussion --- p.33 / Chapter Chapter4 --- Dependence of mechanical behavior on C concentration in Fe-C-Si network alloys --- p.63 / Chapter 4.1 --- Abstract --- p.63 / Chapter 4.2 --- Introduction --- p.64 / Chapter 4.3 --- Experimental --- p.66 / Chapter 4.4 --- Results --- p.68 / Chapter 4.5 --- Discussions --- p.76

Thesis (Ph.D.)--University of Florida, 2005. / Title from title page of source document. Document formatted into pages; contains 122 pages. Includes vita. Includes bibliographical references.

Thesis (M.S.)--West Virginia University, 2001. / Title from document title page. Document formatted into pages; contains xi, 59 p. : ill. Includes abstract. Includes bibliographical references (p. 57-59).

Thesis (M. Sc.)(Chemical Eng.)--University of Pretoria, 2003. / Bibliography included.

Thesis Ph. D., University of Hong Kong. / Includes reprints of 2 papers entitled Structural and mechanistic studies of co-ordination compounds. Part II ... by C.K. Poon and H.W. Tong, from the Journal of the Chemical Society (A), 1971, and Structural and mechanistic studies of co-ordination compounds. Part V ... by K.S. Mok and others, from the Journal of the Chemical Society (Dalton), 1972.

Thesis (M. Sc.)--University of Hong Kong, 1973. / Typewritten.

Thesis (M. Sc.)--University of Hong Kong, 1970. / Typewritten.

Thesis (Ph. D.)--University of Hong Kong. / Typewritten.