Preparation of alumina/titanium diboride nano-composite powder by milling assisted sol–gel method

Rabiezadeh, Amin; Hadian, A.M.; Ataie, A.

doi:10.1016/j.ijrmhm.2011.09.015

Cited by 18 publications

(9 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…X-Ray diffraction displays reduction in the peaks' intensity of the milled samples, as a result of particles' size reduction, Figure 1. Similar results are reported in literature (27)(28)(29)(30)(31)53). It is observed, that hard TiO2 and B2O3 particles are being shattered, eventually coating the ductile Al particles, Figure 2, as seen in literature (27)(28)(29)(30)(31)53).…”

Section: Resultssupporting

confidence: 92%

“…Similar results are reported in literature (27)(28)(29)(30)(31)53). It is observed, that hard TiO2 and B2O3 particles are being shattered, eventually coating the ductile Al particles, Figure 2, as seen in literature (27)(28)(29)(30)(31)53). Aluminium particles have sizes of approximately 200 microns, while TiO2 and B2O3 particle sizes range from 10 -600 nm.…”

Section: Resultssupporting

confidence: 92%

See 1 more Smart Citation

Phase and Microstructural Analysis of In-Situ Derived Alumina-TiB2 Composites

Daskalakis

Jha

Scott

et al. 2022

The Minerals, Metals &Amp; Materials Series

View full text Add to dashboard Cite

The paper focusses on the phase and microstructural evolution in ceramic composite based on alumina and titanium diboride, in which the precursor materials are aluminium mixed with TiO2 and B2O3. The highly exothermic, self-sustaining, aluminothermic reaction () occurs in the absence of oxygen. Eventually, triggering the self-sustaining reaction on compacts formed from a ball-milled derived mixture, consisted of Al particles coated with TiO2 and B2O3 nano-particles, resulted in the spontaneous formation of a ceramic phase mixture consisted of alumina particles coated with TiB2 and Ti2O3 nano-particles. The highly exothermic character of the reaction enabled the sintering of the coated Al2O3 particles into a dense unique microstructure.

show abstract

Section: Resultssupporting

confidence: 92%

Section: Resultssupporting

confidence: 92%

Phase and Microstructural Analysis of In-Situ Derived Alumina-TiB2 Composites

Daskalakis

Jha

Scott

et al. 2022

The Minerals, Metals &Amp; Materials Series

View full text Add to dashboard Cite

show abstract

“…The production method of the used powder is available in literature. 27,28 The chemical composition of the used base material is illustrated in Table 1. The average diameter of the reinforcement particles was less than 500 nm.…”

Section: Methodsmentioning

confidence: 99%

Effect of tool pin profile on the microstructure and mechanical properties of friction stir processed Al6061/Al₂O₃—TiB₂ surface hybrid composite layer

Khojastehnezhad

Pourasl

Barenji

2017

Proceedings of the Institution of Mechanical Engineers, Part L:

View full text Add to dashboard Cite

The Al6061/Al2O3–TiB2 surface hybrid composites were produced using friction stir processing. The effect of the tool pin profile was investigated on the microstructure and mechanical properties including hardness and wear resistance. For this purpose, simple cylindrical, threaded cylindrical, taper, square, and triangular pin profiles were used. X-ray diffraction analysis and transmission electron microscopy were used to characterize the used powder. Light and scanning electron microscopes were utilized for the microstructural observations of the processed samples. The results showed that the distribution of Al2O3–TiB2 particles in the specimens produced using square and triangular tool pin profiles was more uniform due to their tool geometry, which results in better stirring of the material and good material flow. Consequently, a greater reduction of particle clustering was observed, and hence the mechanical properties were enhanced. Moreover, the samples produced using square and triangular pin profiles exhibited more grain refinement than the other samples. More uniform structure, less clustering, and finer grains produced by square and triangular pin profiles caused higher hardness and wear resistance of the samples.

show abstract

“…This powder was prepared under a project at School of Metallurgy and Materials Engineering, University of Tehran, and the results of the mentioned project are presented in other published papers. 30,31 X-Ray diffraction (XRD) measurements were performed using Cu Ka radiation at 40 kV and 30 mA. The FSP was conducted using vertical milling machine.…”

Section: Methodsmentioning

confidence: 99%

Wear properties of Al–Al₂O₃/TiB₂ surface hybrid composite layer prepared by friction stir process

Barenji

Khojastehnezhad

Pourasl

et al. 2015

Journal of Composite Materials

View full text Add to dashboard Cite

In this study, surface hybrid composite was fabricated on Al6061 base sheets using friction stir processing (FSP). Samples were subjected to various numbers of FSP passes from one to four with Al2O3/TiB2 powder. Influence of number of FSP passes was studied on distribution of Al2O3/TiB2 particles in aluminium matrix, microstructure, hardness, and wear properties of specimens. The results showed that increase in the number of passes causes a more uniform dispersion of composite particles and thus, decreases particles clustering. In addition, an increase in the number of FSP passes was found to decrease the matrix grain size of the surface hybrid composite. It was observed that the hardness increased as the number of passes increased due to presence and pinning effect of hard Al2O3/TiB2 particles. Also, at higher number of passes, the surface hybrid composite wear resistance was increased.

show abstract

Preparation of alumina/titanium diboride nano-composite powder by milling assisted sol–gel method

Cited by 18 publications

References 16 publications

Phase and Microstructural Analysis of In-Situ Derived Alumina-TiB2 Composites

Phase and Microstructural Analysis of In-Situ Derived Alumina-TiB2 Composites

Effect of tool pin profile on the microstructure and mechanical properties of friction stir processed Al6061/Al₂O₃—TiB₂ surface hybrid composite layer

Wear properties of Al–Al₂O₃/TiB₂ surface hybrid composite layer prepared by friction stir process

Contact Info

Product

Resources

About

Preparation of alumina/titanium diboride nano-composite powder by milling assisted sol–gel method

Cited by 18 publications

References 16 publications

Phase and Microstructural Analysis of In-Situ Derived Alumina-TiB2 Composites

Phase and Microstructural Analysis of In-Situ Derived Alumina-TiB2 Composites

Effect of tool pin profile on the microstructure and mechanical properties of friction stir processed Al6061/Al2O3—TiB2 surface hybrid composite layer

Wear properties of Al–Al2O3/TiB2 surface hybrid composite layer prepared by friction stir process

Contact Info

Product

Resources

About

Effect of tool pin profile on the microstructure and mechanical properties of friction stir processed Al6061/Al₂O₃—TiB₂ surface hybrid composite layer

Wear properties of Al–Al₂O₃/TiB₂ surface hybrid composite layer prepared by friction stir process