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学者姓名：阮玉忠
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Abstract ：
The alpha-Al2O3/Al4.59Si1.41O9.7/Al2TiO5 multiphase material with high performance was prepared by reaction sintering. The influence of different formulas on the structures and properties of multiphase material was investigated to determine the optimal formula. Crystalline structure and cell parameters of sintered samples were characterized by XRD. Microstructure of all samples was observed by SEM. The properties of sintered samples were investigated. The results show that corundum phase (alpha-Al2O3), mullite solid solution phase (Al4.59Si1.41O9.7) and aluminium titanate phase (Al2TiO5) were formed in the sintered samples. Different formulas would not change the symmetry of each crystalline phase, but caused slight change in their cell parameters. The optimal formula was determined to be coarse corundum of 36%, fine corundum of 21%, total amount of three kinds of clay of 33%, and TiO2 of 12%, which possessed a comparatively ideal microstructure and optimal properties.
Keyword ：
aluminium titanate aluminium titanate corundum corundum mullite mullite property property structure structure
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| GB/T 7714 | Chen Jie , Ruan Yu-Zhong . Preparation and Characterization of High-quality alpha-Al2O3/Al4.59Si1.41O9.7/Al2TiO5 Multiphase Material [J]. | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY , 2013 , 32 (7) : 1055-1061 . |
| MLA | Chen Jie 等. "Preparation and Characterization of High-quality alpha-Al2O3/Al4.59Si1.41O9.7/Al2TiO5 Multiphase Material" . | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY 32 . 7 (2013) : 1055-1061 . |
| APA | Chen Jie , Ruan Yu-Zhong . Preparation and Characterization of High-quality alpha-Al2O3/Al4.59Si1.41O9.7/Al2TiO5 Multiphase Material . | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY , 2013 , 32 (7) , 1055-1061 . |
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Abstract ：
A two-step sintering method was used to prepare Al(8.3)iSi(1.91)Mg(3.78)O(20)(corundum solid solution)/Al4.8Si1.2O9.6(mullite solid solution)/Mg2.0Al4.02Si4.98O18(cordierite solid solution) multiphase material, for the purposes of making these three crystal structures have point defects which could help the particles diffuse and transfer at high temperature, accelerate the sintering efficiently and enhance the material strength as well as the bulk density. The impacts of different formulas on the structure and properties of the multiphase material were investigated. With XRD and SEM analyses, for each sample, the crystal structure and microstructure were characterized, the crystalline phase content and cell parameters were determined with Rietveld Quantification software, and the properties were tested. The comparative optimal formula determined was calcinated chamotte of 80wt% and calcinated sludge of 20wt%; and its corresponding bending strength and retention rate of bending strength after a thermal shock were 29.74 MPa and 80.15%, respectively.
Keyword ：
cordierite solid solution cordierite solid solution corundum solid solution corundum solid solution formula formula mullite solid solution mullite solid solution multiphase material multiphase material
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| GB/T 7714 | Luo Jin-Rong , Ruan Yu-Zhong , Lin Shou et al. Preparation and Characterization of Al8.31Si1.91Mg3.78O20/Al4.8Si1.2O9.6/Mg2.0Al4.02Si4.98O18 Multiphase Material [J]. | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY , 2013 , 32 (3) : 369-374 . |
| MLA | Luo Jin-Rong et al. "Preparation and Characterization of Al8.31Si1.91Mg3.78O20/Al4.8Si1.2O9.6/Mg2.0Al4.02Si4.98O18 Multiphase Material" . | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY 32 . 3 (2013) : 369-374 . |
| APA | Luo Jin-Rong , Ruan Yu-Zhong , Lin Shou , Chen Jie . Preparation and Characterization of Al8.31Si1.91Mg3.78O20/Al4.8Si1.2O9.6/Mg2.0Al4.02Si4.98O18 Multiphase Material . | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY , 2013 , 32 (3) , 369-374 . |
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Abstract ：
A two-step sintering method was used to prepare Al8.31Si1.91Mg3. 78O20(corundum solid solution)/Al4.8Si1.2O9.6(mullite solid solution)/Mg2.0Al4. 02Si4.98O18(cordierite solid solution) multiphase material, for the purposes of making these three crystal structures have point defects which could help the particles diffuse and transfer at high temperature, accelerate the sintering efficiently and enhance the material strength as well as the bulk density. The impacts of different formulas on the structure and properties of the multiphase material were investigated. With XRD and SEM analyses, for each sample, the crystal structure and microstructure were characterized, the crystalline phase content and cell parameters were determined with Rietveld Quantification software, and the properties were tested. The comparative optimal formula determined was calcinated chamotte of 80wt% and calcinated sludge of 20wt%; and its corresponding bending strength and retention rate of bending strength after a thermal shock were 29.74 MPa and 80.15%, respectively. Copyright © 2008 Chinese Journal of Structural Chemistry.
Keyword ：
Cordierite solid solution; Corundum solid solution; Formula; Mullite solid solution; Multiphase material Cordierite solid solution; Corundum solid solution; Formula; Mullite solid solution; Multiphase material
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| GB/T 7714 | Jin-Rong, L. , Yu-Zhong, R. , Shou, L. et al. Preparation and characterization of Al8.31Si1.91Mg3.78O20/Al4.8Si1.2O9.6/ Mg2.0Al4.02Si4.98o18 multiphase material [J]. | Jiegou Huaxue , 2013 , 32 (3) : 369-374 . |
| MLA | Jin-Rong, L. et al. "Preparation and characterization of Al8.31Si1.91Mg3.78O20/Al4.8Si1.2O9.6/ Mg2.0Al4.02Si4.98o18 multiphase material" . | Jiegou Huaxue 32 . 3 (2013) : 369-374 . |
| APA | Jin-Rong, L. , Yu-Zhong, R. , Shou, L. , Jie, C. . Preparation and characterization of Al8.31Si1.91Mg3.78O20/Al4.8Si1.2O9.6/ Mg2.0Al4.02Si4.98o18 multiphase material . | Jiegou Huaxue , 2013 , 32 (3) , 369-374 . |
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Abstract ：
The α-Al2O3/Al4.59Si1.41O9.7/Al2TiO5 multiphase material with high performance was prepared by reaction sintering. The influence of different formulas on the structures and properties of multiphase material was investigated to determine the optimal formula. Crystalline structure and cell parameters of sintered samples were characterized by XRD. Microstructure of all samples was observed by SEM. The properties of sintered samples were investigated. The results show that corundum phase (α-Al2O3), mullite solid solution phase (Al4.59Si1.41O9.7) and aluminium titanate phase (Al2TiO5) were formed in the sintered samples. Different formulas would not change the symmetry of each crystalline phase, but caused slight change in their cell parameters. The optimal formula was determined to be coarse corundum of 36%, fine corundum of 21%, total amount of three kinds of clay of 33%, and TiO2 of 12%, which possessed a comparatively ideal microstructure and optimal properties.
Keyword ：
Aluminium titanate; Corundum; Mullite; Property; Structure Aluminium titanate; Corundum; Mullite; Property; Structure
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| GB/T 7714 | Chen, J. , Ruan, Y.-Z. . Preparation and characterization of high-quality α-Al 2O3/Al4.59Si1.41O9.7/Al2TiO5 Multiphase Material [J]. | Jiegou Huaxue , 2013 , 32 (7) : 1055-1061 . |
| MLA | Chen, J. et al. "Preparation and characterization of high-quality α-Al 2O3/Al4.59Si1.41O9.7/Al2TiO5 Multiphase Material" . | Jiegou Huaxue 32 . 7 (2013) : 1055-1061 . |
| APA | Chen, J. , Ruan, Y.-Z. . Preparation and characterization of high-quality α-Al 2O3/Al4.59Si1.41O9.7/Al2TiO5 Multiphase Material . | Jiegou Huaxue , 2013 , 32 (7) , 1055-1061 . |
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Abstract ：
The crystalline phase formed during aluminum titanate at 750-1300 degrees C as well as the relationship between its content change and decomposition dynamics was mainly discussed in this paper. Dynamical equation was established for calculating the reaction activation energy. It aimed at providing dynamics basic data for taking up necessary measures to inhibit the decomposition of aluminum titanate. Experimental results showed that aluminum titanate would decompose into TiO2 and corundum at 750-1300 degrees C. Content of aluminum titanate would reduce with the increase of decomposition time, and the order of decomposition rates at different temperature was 1100 > 1200 > 1000 > 900 degrees C. The decomposition was a chemical reaction with control steps, and could meet the first order reaction dynamic equation- F(G) = [(1 - G)(-2/3) - 1] = Kt. According to the calculation, rate constants of different decomposition reaction dynamic equations were K-900 = 2.2x10(-3), K-1000 = 1.2x10(-2) = 4x10(-1) and K-1200 = 1.5x10(-1), and the reaction activation energy Delta Gave = 203.21 KJ/mol.
Keyword ：
aluminum titanate decomposition aluminum titanate decomposition crystalline phase crystalline phase decomposition dynamics decomposition dynamics
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| GB/T 7714 | Lin Shou , Ruan Yu-Zhong , Shen Yang et al. Crystalline Phase and Decomposition Dynamics of Aluminum Titanate at Different Temperature [J]. | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY , 2012 , 31 (1) : 79-84 . |
| MLA | Lin Shou et al. "Crystalline Phase and Decomposition Dynamics of Aluminum Titanate at Different Temperature" . | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY 31 . 1 (2012) : 79-84 . |
| APA | Lin Shou , Ruan Yu-Zhong , Shen Yang , Luo Jin-Rong . Crystalline Phase and Decomposition Dynamics of Aluminum Titanate at Different Temperature . | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY , 2012 , 31 (1) , 79-84 . |
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In the study, sludge from the aluminum profile factory and kaolin were used as the raw materials. Through adding ZrO2 mineralizer in different contents, Al2-xZrx+yTi1-yO5 and Al4.54Si1.46O9.73 and solid solution multiphase material was prepared to effectively inhibit the decomposition of aluminum titanate solid solution and optimize high temperature property of the multiphase material. With XRD and SEM means, crystalline structure and microstructure of each sample were characterized, and properties of each sample were tested. According to experimental results, the optimal addition amount of ZrO2 mineralizer was determined to be 1.5%. Correspondingly, contents for aluminum titanate solid solution, mullite solid solution and alpha-Al2O3 were 70.3%, 26.8% and 2.9% respectively, bulk density was 3.20 g/cm(3), degree of porosity was 5.57%, water absorption rate was 1.74%, and the once thermal shock rupture strength retention rate was 90.52%.
Keyword ：
aluminum titanate solid solution aluminum titanate solid solution crystalline phase crystalline phase mullite solid solution mullite solid solution property property ZrO2 mineralizer ZrO2 mineralizer
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| GB/T 7714 | Luo Jin-Rong , Ruan Yu-Zhong , Lin Shou . Preparation and Structural Defects of Al2-xZrx+yTi1-yO5 and Al4.54Si1.46O9.73 Multiphase Material [J]. | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY , 2012 , 31 (2) : 155-160 . |
| MLA | Luo Jin-Rong et al. "Preparation and Structural Defects of Al2-xZrx+yTi1-yO5 and Al4.54Si1.46O9.73 Multiphase Material" . | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY 31 . 2 (2012) : 155-160 . |
| APA | Luo Jin-Rong , Ruan Yu-Zhong , Lin Shou . Preparation and Structural Defects of Al2-xZrx+yTi1-yO5 and Al4.54Si1.46O9.73 Multiphase Material . | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY , 2012 , 31 (2) , 155-160 . |
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Abstract ：
In the study, sludge from the aluminum profile factory and kaolin were used as the raw materials. Through adding ZrO 2 mineralizer in different contents, Al 2-xZr x+yTi 1-yO 5 and Al 4.54Si 1.46O 9.73 solid solution multiphase material was prepared to effectively inhibit the decomposition of aluminum titanate solid solution and optimize high temperature property of the multiphase material. With XRD and SEM means, crystalline structure and microstructure of each sample were characterized, and properties of each sample were tested. According to experimental results, the optimal addition amount of ZrO 2 mineralizer was determined to be 1.5%. Correspondingly, contents for aluminum titanate solid solution, mullite solid solution and α-Al 2O 3 were 70.3%, 26.8% and 2.9% respectively, bulk density was 3.20 g/cm 3, degree of porosity was 5.57%, water absorption rate was 1.74%, and the once thermal shock rupture strength retention rate was 90.52%.
Keyword ：
Aluminum titanate solid solution; Crystalline phase; Mullite solid solution; Property; Zro 2 mineralizer Aluminum titanate solid solution; Crystalline phase; Mullite solid solution; Property; Zro 2 mineralizer
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| GB/T 7714 | Luo, J.-R. , Ruan, Y.-Z. , Lin, S. . Preparation and structural defects of Al 2-xZr x+yTi 1-yO 5 and Al 4.54Si 1.46O 9.73 multiphase material [J]. | Jiegou Huaxue , 2012 , 31 (2) : 155-160 . |
| MLA | Luo, J.-R. et al. "Preparation and structural defects of Al 2-xZr x+yTi 1-yO 5 and Al 4.54Si 1.46O 9.73 multiphase material" . | Jiegou Huaxue 31 . 2 (2012) : 155-160 . |
| APA | Luo, J.-R. , Ruan, Y.-Z. , Lin, S. . Preparation and structural defects of Al 2-xZr x+yTi 1-yO 5 and Al 4.54Si 1.46O 9.73 multiphase material . | Jiegou Huaxue , 2012 , 31 (2) , 155-160 . |
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Abstract ：
The crystalline phase formed during aluminum titanate at 750-1300 °C as well as the relationship between its content change and decomposition dynamics was mainly discussed in this paper. Dynamical equation was established for calculating the reaction activation energy. It aimed at providing dynamics basic data for taking up necessary measures to inhibit the decomposition of aluminum titanate. Experimental results showed that aluminum titanate would decompose into TiO 2 and corundum at 750-1300 °C. Content of aluminum titanate would reduce with the increase of decomposition time, and the order of decomposition rates at different temperature was 1100 > 1200 > 1000 > 900 °C. The decomposition was a chemical reaction with control steps, and could meet the first order reaction dynamic equation-F(G) = [(1 - G) -2/3 - 1] = Kt. According to the calculation, rate constants of different decomposition reaction dynamic equations were K 900 = 2.2×10 -3, K 1000 = 1.2×10 -2, K 1100 = 4×10 -1 and K 1200 = 1.5×10 -1, and the reaction activation energy ΔGave = 203.21 KJ/mol.
Keyword ：
Aluminum titanate decomposition; Crystalline phase; Decomposition dynamics Aluminum titanate decomposition; Crystalline phase; Decomposition dynamics
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| GB/T 7714 | Lin, S. , Ruan, Y.-Z. , Shen, Y. et al. Crystalline phase and decomposition dynamics of aluminum titanate at different temperature [J]. | Jiegou Huaxue , 2012 , 31 (1) : 79-84 . |
| MLA | Lin, S. et al. "Crystalline phase and decomposition dynamics of aluminum titanate at different temperature" . | Jiegou Huaxue 31 . 1 (2012) : 79-84 . |
| APA | Lin, S. , Ruan, Y.-Z. , Shen, Y. , Luo, J.-R. . Crystalline phase and decomposition dynamics of aluminum titanate at different temperature . | Jiegou Huaxue , 2012 , 31 (1) , 79-84 . |
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本研究以铝型材厂煅烧污泥为主原料，研制刚玉／莫来石／钛酸铝复相材料。本实验主要探讨不同配方对复相材料结构与性能的影响，从而确定较佳的配方。用XBD和8EM分析确定各试样的晶相和结构，应用Rietveld quantification软件计算试样中各晶相的含量，测试各试样性能。实验结果，各试样形成5种晶相：α-Al2O3、Al4.59Si1.41O9.7和Al2TiO5，其中Al4.59Si1.41O9.7是主晶相。分析结果，确定NO．4为最佳的配方，其对应晶相含量：α-Al2O3为15．2％、Al4.59Si1.41O9.7为576％、Al2TiO5为27．2％；其对应的抗折强度107．65Mpa，一次热震强度抗折强度保持率为41．51％。
Keyword ：
刚玉 刚玉 莫来石 莫来石 钛酸铝 钛酸铝 铝型材厂污泥 铝型材厂污泥
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| GB/T 7714 | 谢志煌 , 阮玉忠 , 王新锋 . 利用铝材厂污泥研制刚玉／莫来石／钛酸铝复相材料 [J]. | 中国陶瓷 , 2011 , 47 (9) : 23-26 . |
| MLA | 谢志煌 et al. "利用铝材厂污泥研制刚玉／莫来石／钛酸铝复相材料" . | 中国陶瓷 47 . 9 (2011) : 23-26 . |
| APA | 谢志煌 , 阮玉忠 , 王新锋 . 利用铝材厂污泥研制刚玉／莫来石／钛酸铝复相材料 . | 中国陶瓷 , 2011 , 47 (9) , 23-26 . |
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In this study, sludge from the aluminum profile factory and pyrophyllite were used as major raw materials to prepare mullite. Through determining optimum formula, the optimum calcination temperature and optimum temperature retention time as well as the effects of BaF2 mineralizer on the crystal structure, microstructure and properties of mullite were studied and the optimum BaF2 mineralizer dosage was determined. With XRD and SEM methods, the crystal structure and microstructure of each sample were characterized. With Rietveld Quantification method, crystal phase content in each sample was determined and properties of each sample were tested. Based on the comprehensive analysis result, it was determined that optimum BaF2 dosage was 0.5%, the fairly good calcination temperature was 1550 degrees C, and the corresponding mullite solid solution content was 95.8%.
Keyword ：
CaF2 mineralizer CaF2 mineralizer crystal structure crystal structure microstructure microstructure mullite solid solution mullite solid solution property property
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| GB/T 7714 | Chen Yong-Rui , Ruan Yu-Zhong , Zeng Jing-Xu et al. Effects of BaF2 on Preparing Mullite with Sludge from the Aluminum Profile Factory and Pyrophyllite [J]. | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY , 2010 , 29 (11) : 1697-1701 . |
| MLA | Chen Yong-Rui et al. "Effects of BaF2 on Preparing Mullite with Sludge from the Aluminum Profile Factory and Pyrophyllite" . | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY 29 . 11 (2010) : 1697-1701 . |
| APA | Chen Yong-Rui , Ruan Yu-Zhong , Zeng Jing-Xu , Chen Qi-Di , Yang Chao . Effects of BaF2 on Preparing Mullite with Sludge from the Aluminum Profile Factory and Pyrophyllite . | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY , 2010 , 29 (11) , 1697-1701 . |
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