6th International Symposium on High-Temperature by Tao Jiang, Jiann-Yang Hwang, Gerardo R. F. Alvear Flores,

By Tao Jiang, Jiann-Yang Hwang, Gerardo R. F. Alvear Flores, Onuralp Yucel, Xinping Mao, Hong Yong Sohn, Naiyang Ma, Phillip J. Mackey, Thomas P. Battle

The research, improvement, and/or operation of hot temperature procedures that contain the creation of ferrous and nonferrous metals, alloys, and refractory and ceramic fabrics are lined within the e-book. The cutting edge tools for attaining impurity segregation and removing, derivative restoration, waste minimization, and/or power potency also are concerned. 8 issues are offered within the book:

1: excessive potency New Metallurgical technique and Technology
2: basic study of Metallurgical Process
3: Alloys and fabrics Preparation
4: Direct relief and Smelting Reduction
5: Coking, New strength and Environment
6: usage of sturdy Slag/Wastes and intricate Ores
7: Characterization of hot temperature Metallurgical Process

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Preparing process of alloy samples follows as: firstly polishing-"corroding for 10~20s- , -washing- , -scrubbing by alcohol-"drying. The corrosive liquid is mix acid of HF: HN0 3 : H20=l~3ml: 2~6ml: 91~97ml. The phase compositions of alloys and slags were analyzed by X' Pert Pro MPD (type PW3040/60, scanning speed of 20/min). The oxygen content in alloy was measured by the oxygen and nitrogen analyzer (type G8. Germany Bruker Ltd). Results and Discussion The Phase Analysis of High Titanium Ferroalloy In order to achieve the objective of reducing the aluminum content in the alloy, the following method was used to prepared quality titanium ferroalloy: In the first reduction process, the use of aluminum was 95% of the theoretical amount, which is inadequate, and then got titanium alloy melt by smelting with silicon as agent.

20 30 u 1 ^ 40 t*At 50 60 4 70 Î i i 80 PO P o s i t i o n (2 t h) Figure 3. XRD Patterns of ZrB 2 X R D results show many Mg phases, to eliminate this impurities leaching prosess was carried out. Table EI shows leaching conditions and Figure 4 presents XRD results of leached product. Table III. 25MHC1 O O O« 0 0 40 20 Position (2Tli) Figure 4. XRD Graphs of leached ZrB 2 In the second experiment set TiB 2 produced via SHS and leaching process. In this experiments Mg stoichiometry changed and catalysts effect investigated.

XRD Patterns of Unleaehed and leached TiB 2 under Ar Atmosphere Table V Initial Conditions of TiB2 SHS Experiments No Rate Zr/Ti ZrO 2 TiO^g) B03(g) Mg (g) SHS Product(g) (g) 1 90/10 23,20 2,96 41,90 31,92 90,00 2 80/20 20,64 5,92 40,12 33,33 90,30 3 70/30 18,04 8,89 38,32 34,31 71,90 4 60/40 15,46 11,85 36,53 36,14 71,80 5 50/50 12,89 14,82 34,74 37,54 91,20 6 40/60 10,31 17,78 32,94 38,95 94,90 7 30/70 7,73 20,74 31,20 40,40 57,00 8 20/80 5,15 23,71 29,30 41,72 97,50 9 10/90 2,57 26,67 27,57 43,16 60,30 After the SHS experiment again leaching process made, Figure 7 shows leached and unleached products of ZrB2-TiB2 composite powders.

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