Effect of nano-TiO 2 and nano-SiO 2 addition on the morphological control of α-Al 2 O 3 platelets via solid-state reaction

Miao, Zhuang; Jiangong, Shi; Hao, Jianwei; Fan, Qunbo; Zhang, Yi; Zhang, Min-Hong

doi:10.1016/j.ceramint.2015.09.049

Cited by 13 publications

(2 citation statements)

References 35 publications

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“…Also they are generated as an interfacial phase between matrix metal and oxides [11]. These oxygen sources such as TiO 2 [12][13][14], B 2 O 3 [15,16] and CuO [17] were already performed on the probability of preparing the in situ Al 2 O 3p /Al composites. SiO 2 as a parent oxide can also be applied for synthesising the Al 2 O 3 particle in the melt.…”

Section: Introductionmentioning

confidence: 99%

Analysis of properties for in situ Al₂O₃p/A356 composites synthesised from the Al-SiO₂ system

Meng

Chen

Zhang

et al. 2017

Materials Science and Technology

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In situ Al2O3p/A356 composites with different particle volume fractions were successfully synthesised from the Al-SiO2 system by a direct-melt reaction. γ-Al2O3 was first produced during the reaction between Al and SiO2, and the phase transformation from γ-Al2O3 to α-Al2O3 then occurred at higher temperatures (1050°C), resulting in a volume contraction. The α-Al2O3p/A356 composite exhibited a reduction in dendrite cell size that was 1.5–2 greater than for the matrix alloy cast using the same conditions. A 10% particle volume fraction yielded optimum mechanical properties, with values for the yield stress, tensile strength, elongation and microhardness of 132 MPa, 268 MPa, 5.1% and 107.2 HV, respectively. These corresponded to increases 50, 31, 19 and 47%, respectively, when compared to the matrix. This paper is part of a thematic issue on Light Alloys.

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Section: Introductionmentioning

confidence: 99%

Analysis of properties for in situ Al₂O₃p/A356 composites synthesised from the Al-SiO₂ system

Meng

Chen

Zhang

et al. 2017

Materials Science and Technology

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“…1. Introduction: α-alumina platelets with unique chemical, thermal and mechanical properties are widely utilised as reinforcement fillers to plastics, toughness enhancers in ceramic matrix composite, and fillers for thermal conductivity improvement [1,2]. Reinforcing matrixes with these rigid particles have been conventionally attempted to enhance their elastic modulus, tensile strength, and fracture toughness through the constraint imposed by the rigid platelets on the local matrix deformation field [3].…”

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confidence: 99%

Synthesis of plate‐like α ‐alumina crystals by solid state reaction of fir immersed with slurry mixture of gibbsite and non‐fluorine morphological modifiers

Zhang

Wang

et al. 2019

Micro & Nano Letters

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Solid state reaction without fluorine addition was employed to synthesise plate-like α-alumina. Platelets of α-alumina with non-uniform thickness were obtained using slurry mixture (SM) comprised of gibbsite and morphological modifiers as starting materials. In comparison, α-alumina crystals were fabricated with a plate-like shape with uniform thickness after calcination of fir immersed with SM (FISM). The activation energies of phase transformation from γ-alumina to α-alumina for SM and FISM are determined by the Kissinger method as 109.8 and 132.9 kJ/mol, respectively. These results indicate the rearrangement of atomic stacking during transformation is accomplished with a relatively slow rate in an open space after the decomposition of fir template. The present study demonstrates a facile method to fabricate α-alumina platelets with extensive applications.

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Organosilicon-group-derived silica-ionogel electrolyte for lithium ion batteries

Guo

Yue

et al. 2018

Rare Met.

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Effect of nano-TiO 2 and nano-SiO 2 addition on the morphological control of α-Al 2 O 3 platelets via solid-state reaction

Cited by 13 publications

References 35 publications

Analysis of properties for in situ Al₂O₃p/A356 composites synthesised from the Al-SiO₂ system

Analysis of properties for in situ Al₂O₃p/A356 composites synthesised from the Al-SiO₂ system

Synthesis of plate‐like α ‐alumina crystals by solid state reaction of fir immersed with slurry mixture of gibbsite and non‐fluorine morphological modifiers

Organosilicon-group-derived silica-ionogel electrolyte for lithium ion batteries

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Effect of nano-TiO 2 and nano-SiO 2 addition on the morphological control of α-Al 2 O 3 platelets via solid-state reaction

Cited by 13 publications

References 35 publications

Analysis of properties for in situ Al2O3p/A356 composites synthesised from the Al-SiO2 system

Analysis of properties for in situ Al2O3p/A356 composites synthesised from the Al-SiO2 system

Synthesis of plate‐like α ‐alumina crystals by solid state reaction of fir immersed with slurry mixture of gibbsite and non‐fluorine morphological modifiers

Organosilicon-group-derived silica-ionogel electrolyte for lithium ion batteries

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Product

Resources

About

Analysis of properties for in situ Al₂O₃p/A356 composites synthesised from the Al-SiO₂ system

Analysis of properties for in situ Al₂O₃p/A356 composites synthesised from the Al-SiO₂ system