Intrinsic mechanical properties of calcium aluminate crystals via the linear comparison composite method coupled with nano-indentation

Akono, Ange-Thérèse; Cui, Yue; Kataruka, Amrita; Anderson, Kevin R.; Kabir, Pooyan

doi:10.1016/j.mechmat.2017.12.007

Cited by 9 publications

(1 citation statement)

References 36 publications

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“…Calcium aluminate-based materials have become popular composites for scientific technological progress, which have wide applications in concrete (low density and hardness), , biomaterials (physical, mechanical, bioactive, and biocompatible), functional ceramic, and refractory (high-temperature stability). Meanwhile, they also play an important role in the metallurgical industry recovering alumina from low-grade aluminum-containing resources with the lime sinter process, , such as high-iron bauxite, Bayer red mud, kaolinite, and high-alumina fly ash.…”

Section: Introductionmentioning

confidence: 99%

Mineral Transition and Chemical Reactivity Evolution of a Low-Lime Calcium Aluminate Clinker with MgO and Na₂SO₄ Codopants

Zhang

Sun

et al. 2019

ACS Omega

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The mineral formation–transition mechanism, microstructure evolution, crystal structure, pulverization property, and chemical reactivity of the CaO–Al 2 O 3 –SiO 2 clinker with MgO and Na 2 SO 4 dopants during the sintering process at 1300 °C for 2.0 h were systematically studied using CaO, Al 2 O 3 , SiO 2 , MgO, and Na 2 SO 4 as raw materials when the molar ratio of CaO to Al 2 O 3 is 1.4, the mass ratio of Al 2 O 3 to SiO 2 is 3.0, and the mass percentage of MgO and Na 2 SO 4 is 2%. The MgO dopant could result in 12CaO·7Al 2 O 3 and γ-2CaO·SiO 2 , transform into 20CaO·13Al 2 O 3 ·3MgO·3SiO 2 , restrain the crystal transformation of 2CaO·SiO 2 from β to γ, and then deteriorate the pulverization and alumina leaching property corresponding to parts of Al, Si, and Mg atoms occupying the same lattice positions of the crystal structure. MgO and Na 2 SO 4 codoped could promote transformation of 20CaO·13Al 2 O 3 ·3MgO·3SiO 2 into 3CaO·3Al 2 O 3 ·CaSO 4 as well as some 2CaO·Al 2 O 3 ·SiO 2 , while 3CaO·3Al 2 O 3 ·CaSO 4 has good alumina leaching property in the Na 2 CO 3 –NaOH solution. The ultrasonic assistant mainly could promote the diffusion of reactive samples, enhance the separation of agglomeration, and then accelerate the chemical reaction of the sintered clinker with Na 2 CO 3 –NaOH.

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Section: Introductionmentioning

confidence: 99%

Mineral Transition and Chemical Reactivity Evolution of a Low-Lime Calcium Aluminate Clinker with MgO and Na₂SO₄ Codopants

Zhang

Sun

et al. 2019

ACS Omega

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Influence of pore structure on the strength behavior of particle- and fiber-reinforced metakaolin-based geopolymer composites

Akono

Korić

Kriven

2019

Cement and Concrete Composites

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Influence of multi-walled carbon nanotubes on the hydration products of ordinary Portland cement paste

Chen

Akono

2020

Cement and Concrete Research

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Intrinsic mechanical properties of calcium aluminate crystals via the linear comparison composite method coupled with nano-indentation

Cited by 9 publications

References 36 publications

Mineral Transition and Chemical Reactivity Evolution of a Low-Lime Calcium Aluminate Clinker with MgO and Na₂SO₄ Codopants

Mineral Transition and Chemical Reactivity Evolution of a Low-Lime Calcium Aluminate Clinker with MgO and Na₂SO₄ Codopants

Influence of pore structure on the strength behavior of particle- and fiber-reinforced metakaolin-based geopolymer composites

Influence of multi-walled carbon nanotubes on the hydration products of ordinary Portland cement paste

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Intrinsic mechanical properties of calcium aluminate crystals via the linear comparison composite method coupled with nano-indentation

Cited by 9 publications

References 36 publications

Mineral Transition and Chemical Reactivity Evolution of a Low-Lime Calcium Aluminate Clinker with MgO and Na2SO4 Codopants

Mineral Transition and Chemical Reactivity Evolution of a Low-Lime Calcium Aluminate Clinker with MgO and Na2SO4 Codopants

Influence of pore structure on the strength behavior of particle- and fiber-reinforced metakaolin-based geopolymer composites

Influence of multi-walled carbon nanotubes on the hydration products of ordinary Portland cement paste

Contact Info

Product

Resources

About

Mineral Transition and Chemical Reactivity Evolution of a Low-Lime Calcium Aluminate Clinker with MgO and Na₂SO₄ Codopants

Mineral Transition and Chemical Reactivity Evolution of a Low-Lime Calcium Aluminate Clinker with MgO and Na₂SO₄ Codopants