Carbothermal Reduction Synthesis of Aluminum Nitride from Al(OH)<sub>3</sub>/C/PVB Slurries Prepared by Three-Roll Mixing
Polyvinyl butyral (PVB) was used in the Al(OH)<sub>3</sub>/carbon black/ethanol slurries by the three-roll mixing to prepare AlN powder using the carbothermal reduction–nitridation (CRN) process in the experiments. The effects of PVB addition on the synthesis of AlN powder were studied b...
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MDPI AG
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/6/1386 |
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doaj-d700baa0b5344f7bb9be5fbdd4e3bc3e2021-03-13T00:06:02ZengMDPI AGMaterials1996-19442021-03-01141386138610.3390/ma14061386Carbothermal Reduction Synthesis of Aluminum Nitride from Al(OH)<sub>3</sub>/C/PVB Slurries Prepared by Three-Roll MixingQian Wen0Peng Wang1Jingwu Zheng2Yao Ying3Jing Yu4Wangchang Li5Shenglei Che6Liang Qiao7College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, ChinaCollege of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, ChinaCollege of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, ChinaCollege of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, ChinaCollege of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, ChinaCollege of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, ChinaCollege of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, ChinaCollege of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, ChinaPolyvinyl butyral (PVB) was used in the Al(OH)<sub>3</sub>/carbon black/ethanol slurries by the three-roll mixing to prepare AlN powder using the carbothermal reduction–nitridation (CRN) process in the experiments. The effects of PVB addition on the synthesis of AlN powder were studied by viscosity, tap density, XRD, SEM and TG measurements. The results showed that the PVB layer covering on the surface of Al(OH)<sub>3</sub> particles reduced the viscosity of Al(OH)<sub>3</sub>/carbon/ethanol slurry and increased the dispersion homogeneity of Al(OH)<sub>3</sub>/carbon raw powder. The tap densities of the Al(OH)<sub>3</sub>/carbon mixtures after three-roll milling could be increased with the increase in PVB addition. In the CRN process, most of the PVB covering Al(OH)<sub>3</sub> particles evaporated and supplied the passage for nitrogen removal to the particles. Based on the experimental data, the role of PVB on the mixing and CRN process was discussed.https://www.mdpi.com/1996-1944/14/6/1386aluminum nitridepolyvinyl butyral (PVB)Al(OH)<sub>3</sub>carbothermal reduction–nitridation |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Qian Wen Peng Wang Jingwu Zheng Yao Ying Jing Yu Wangchang Li Shenglei Che Liang Qiao |
| spellingShingle |
Qian Wen Peng Wang Jingwu Zheng Yao Ying Jing Yu Wangchang Li Shenglei Che Liang Qiao Carbothermal Reduction Synthesis of Aluminum Nitride from Al(OH)<sub>3</sub>/C/PVB Slurries Prepared by Three-Roll Mixing Materials aluminum nitride polyvinyl butyral (PVB) Al(OH)<sub>3</sub> carbothermal reduction–nitridation |
| author_facet |
Qian Wen Peng Wang Jingwu Zheng Yao Ying Jing Yu Wangchang Li Shenglei Che Liang Qiao |
| author_sort |
Qian Wen |
| title |
Carbothermal Reduction Synthesis of Aluminum Nitride from Al(OH)<sub>3</sub>/C/PVB Slurries Prepared by Three-Roll Mixing |
| title_short |
Carbothermal Reduction Synthesis of Aluminum Nitride from Al(OH)<sub>3</sub>/C/PVB Slurries Prepared by Three-Roll Mixing |
| title_full |
Carbothermal Reduction Synthesis of Aluminum Nitride from Al(OH)<sub>3</sub>/C/PVB Slurries Prepared by Three-Roll Mixing |
| title_fullStr |
Carbothermal Reduction Synthesis of Aluminum Nitride from Al(OH)<sub>3</sub>/C/PVB Slurries Prepared by Three-Roll Mixing |
| title_full_unstemmed |
Carbothermal Reduction Synthesis of Aluminum Nitride from Al(OH)<sub>3</sub>/C/PVB Slurries Prepared by Three-Roll Mixing |
| title_sort |
carbothermal reduction synthesis of aluminum nitride from al(oh)<sub>3</sub>/c/pvb slurries prepared by three-roll mixing |
| publisher |
MDPI AG |
| series |
Materials |
| issn |
1996-1944 |
| publishDate |
2021-03-01 |
| description |
Polyvinyl butyral (PVB) was used in the Al(OH)<sub>3</sub>/carbon black/ethanol slurries by the three-roll mixing to prepare AlN powder using the carbothermal reduction–nitridation (CRN) process in the experiments. The effects of PVB addition on the synthesis of AlN powder were studied by viscosity, tap density, XRD, SEM and TG measurements. The results showed that the PVB layer covering on the surface of Al(OH)<sub>3</sub> particles reduced the viscosity of Al(OH)<sub>3</sub>/carbon/ethanol slurry and increased the dispersion homogeneity of Al(OH)<sub>3</sub>/carbon raw powder. The tap densities of the Al(OH)<sub>3</sub>/carbon mixtures after three-roll milling could be increased with the increase in PVB addition. In the CRN process, most of the PVB covering Al(OH)<sub>3</sub> particles evaporated and supplied the passage for nitrogen removal to the particles. Based on the experimental data, the role of PVB on the mixing and CRN process was discussed. |
| topic |
aluminum nitride polyvinyl butyral (PVB) Al(OH)<sub>3</sub> carbothermal reduction–nitridation |
| url |
https://www.mdpi.com/1996-1944/14/6/1386 |
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