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Demidenko, N. I.; Подзорова, Л. И.; Rozanova, V. S.; Skorokhodov, V.A.; Shevchenko, V. Ya.

doi:10.1023/a:1013931009149

Cited by 23 publications

(6 citation statements)

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“…Wollastonite is an important naturally occurring or synthetic mineral of great interest in the development of ceramics, plastics and paints [1][2][3][4]. This mineral is mainly found in the USA, India, Mexico, China, Turkey and Finland [5].…”

Section: Introductionmentioning

confidence: 99%

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Defects and Calcium Diffusion in Wollastonite

et al. 2020

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Wollastonite (CaSiO3) is an important mineral that is widely used in ceramics and polymer industries. Defect energetics, diffusion of Ca ions and a solution of dopants are studied using atomistic-scale simulation based on the classical pair potentials. The energetically favourable defect process is calculated to be the Ca-Si anti-site defect cluster in which both Ca and Si swap their atomic positions simultaneously. It is calculated that the Ca ion migrates in the ab plane with an activation energy of 1.59 eV, inferring its slow diffusion. Favourable isovalent dopants on the Ca and Si sites are Sr2+ and Ge4+, respectively. Subvalent doping by Al on the Si site is a favourable process to incorporate additional Ca in the form of interstitials in CaSiO3. This engineering strategy would increase the capacity of this material.

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Section: Introductionmentioning

confidence: 99%

“…In general, a relatively small amount of impurities, such as Fe, Mg, Al and Sr, contaminate pure CaSiO 3 [6]. Owing to its remarkable physical, mechanical, electrical and thermal properties, this material has been used as a ceramic, an insulator, a filler and a polymer [2,[7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Defects and Calcium Diffusion in Wollastonite

et al. 2020

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“…Azarov et al reported a review on the application of wollastonite as a raw material in ceramics industry, providing better dielectric properties, mechanical bending strength, lower shrinkage, and lower firing temperature for clay to turn into ceramics . An analysis of the production and applications of wollastonite and wollastonite‐based materials was conducted . The toxicology and epidemiology of the wollastonite were studied and it is concluded that the evidence for epidemiological and carcinogenicity of wollastonite is limited .…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties of wollastonite reinforced thermoplastic composites: A review

et al. 2019

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Wollastonite is a functional filler that has great potential to be used in thermoplastic composites, replacing more expensive reinforcement such as glass fiber. Wollastonite-reinforced polymer composite materials have attracted the attentions from research field and industries due to their biocompatibility and reinforcing ability in polymers. Due to the relatively high aspect ratio and hardness, wollastonite is able to improve the tensile and flexural strength of polymer composites. Many researches have been conducted to determine various properties of wollastonite reinforced polymer composites such as mechanical, flammability, thermal, and tribological properties in order to explore their potential in various applications. This review will focus on mechanical properties of wollastonite reinforced thermoplastic composites. Overall, it can be concluded that the properties of wollastonite-filled polymer composites are the function of filler content, adhesion interactions of wollastonite particles with polymer matrix, size and shape of wollastonite particles.Further research and development are needed to widen its application, and these include the use of nano-size wollastonite which can be produced synthetically as functional filler in thermoplastics. K E Y W O R D Scomposites, mechanical properties, thermoplastic, wollastonite

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“…These characteristics form the basis for the widespread application of wollastonite in ceramic composites, paint, paper, plastics, and vinyl tile manufacture. [23] We found that aligned CNTs can be easily synthesized on wollastonite fiber via chemical vapor deposition (CVD). The as-grown CNTs feature good alignment and narrow diameter and length distributions.…”

Section: Introductionmentioning

confidence: 99%

Advanced Materials from Natural Materials: Synthesis of Aligned Carbon Nanotubes on Wollastonites

et al. 2010

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The growth of carbon nanotubes (CNTs) on natural materials is a low-cost, environmentally benign, and materials-saving method for the large-scale production of CNTs. Directly building 3D CNT architectures on natural materials is a key issue for obtaining advanced materials with high added value. We report the fabrication of aligned CNT arrays on fibrous natural wollastonite. Strongly dispersed iron particles with small sizes were produced on a planar surface of soaked fibrous wollastonite by a reduction process. These particles then catalyzed the decomposition of ethylene, leading to the synchronous growth of CNTs to form leaf- and brush-like wollastonite/CNT hybrids. The as-obtained hybrids could be further transformed into porous SiO(2)/CNT hybrids by reaction with hydrochloric acid. Further treatment with hydrofluoric acid resulted in aligned CNT arrays, with purities as high as 98.7 %. The presented work is very promising for the fabrication of advanced materials with unique structures and properties that can be used as fillers, catalyst supports, or energy-absorbing materials.

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Cited by 23 publications

References 1 publication

Defects and Calcium Diffusion in Wollastonite

Defects and Calcium Diffusion in Wollastonite

Mechanical properties of wollastonite reinforced thermoplastic composites: A review

Advanced Materials from Natural Materials: Synthesis of Aligned Carbon Nanotubes on Wollastonites

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