The Effect of Sintering Temperature on Phase Evolution and Sintering Mechanism of Ceramic Proppants with CaCO3 Addition

Qin, Mei; Tian, Yuming; Hao, Huilan; Li, Guomin; Zhou, Yi; Wu, Yuting; Bai, Pinbo

doi:10.1590/1980-5373-mr-2019-0602

Cited by 3 publications

(7 citation statements)

References 15 publications

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“…this might be detrimental, due to the fact that the different crystalline phases, as well as the amorphous matrix, have distinct thermal expansion coe cients. Thus, an excessive increase in HR generates tensions that are responsible for surpassing the material mechanical resistance causing cracks and reducing its mechanical strength [9]. In addition, impairing in strength is also attributed to the volumetric expansion caused by the quartz allotropic transformation, in the sand, which at higher HRs is capable of generating stresses above those the products may support.…”

Section: Resultsmentioning

confidence: 99%

“…Studies have shown that optimizing the sintering step of ceramic parts considerably reduces the nancial costs of the process, at least by about 20%, which is a highly favorable feature in a scenario of economic crisis [8,9]. Another relevant aspect of the production of ceramic artifacts refers to environmental issues.…”

Section: Introductionmentioning

confidence: 99%

“…The sintering is a fundamental processing stage in the ceramic production and signi cantly related to the quality of the nal product [9,[12][13][14]. In addition, this stage is the one with the largest economical participation in the production chain.…”

Section: Introductionmentioning

confidence: 99%

“…A rapid sintering cycle contributes not only to reduce cost but also to quickly generate thermal energy and e ciently transmit it from the surface to the interior of the ceramic piece. This accelerates the physical and chemical reaction responsible for consolidating the ceramic structure [9,15,16].…”

Section: Introductionmentioning

confidence: 99%

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Heating rate effect during sintering on the technological properties of Brazilian red ceramics

Guimarães¹,

Delaqua²,

Azevedo³

et al. 2022

Int J Adv Manuf Technol

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Unbalanced energy consumption in the production of ceramic artifacts is responsible for considerable undesirable impacts, such as increased emissions of polluting gases, excessive consumption of fuel materials, land degradation and unpredictable nancial costs. By contrast, the practice of optimizing the ceramic sintering, which in associated with ring of high temperature, can result in increased productivity and reduced production costs preserving an environmentally friendly production system. Moreover, it allows further improvements in the quality of the nal product. This work compares the effect of different sintering cycles, with heating rates of 2, 15 and 30°C/min, on the technological properties of a Brazilian industrial clay ceramic body. Initially the clay ceramic specimens was characterized in terms of mineralogical, chemical and physical properties. Specimens were prepared by extrusion and red at temperatures of 800, 900 and 1000°C. The evaluated properties by standard tests were water absorption, post-ring linear shrinkage and exural strength. It was found that owing to sintering carried out at higher heating rates, red ceramic products with superior technological properties were obtained. This is an unprecedented conclusion for common clay ceramics produced in Brazil. Based on the promising obtained results it is evidenced, in a clear and detailed way, the bene ts of rapid sintering cycle application for conventional brick production.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Heating rate effect during sintering on the technological properties of Brazilian red ceramics

Guimarães¹,

Delaqua²,

Azevedo³

et al. 2022

Int J Adv Manuf Technol

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Heating Rate Effect during Sintering on the Technological Properties of Brazilian Red Ceramics

Guimarães

Delaqua

Azevedo

et al. 2021

Preprint

View full text Add to dashboard Cite

Unbalanced energy consumption in the production of ceramic artifacts is responsible for considerable undesirable impacts, such as increased emissions of polluting gases, excessive consumption of fuel materials, land degradation and unpredictable financial costs. By contrast, the practice of optimizing the ceramic sintering, which in associated with firing of high temperature, can result in increased productivity and reduced production costs preserving an environmentally friendly production system. Moreover, it allows further improvements in the quality of the final product. This work compares the effect of different sintering cycles, with heating rates of 2, 15 and 30°C/min, on the technological properties of a Brazilian industrial clay ceramic body. Initially the clay ceramic specimens was characterized in terms of mineralogical, chemical and physical properties. Specimens were prepared by extrusion and fired at temperatures of 800, 900 and 1000°C. The evaluated properties by standard tests were water absorption, post-firing linear shrinkage and flexural strength. It was found that owing to sintering carried out at higher heating rates, red ceramic products with superior technological properties were obtained. This is an unprecedented conclusion for common clay ceramics produced in Brazil. Based on the promising obtained results it is evidenced, in a clear and detailed way, the benefits of rapid sintering cycle application for conventional brick production.

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Basic principle, progress, and prospects of coal gangue ceramic proppants

Zhao

Zhang

et al. 2023

Int J Applied Ceramic Tech

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Ceramic proppants are preferred in hydraulic fracturing because of their high strength, good sphericity, and excellent acid corrosion resistance. Bauxite is the main raw material of ceramic proppants, but with the increasing depletion of bauxite resources, substitutes for bauxite need to be sought. Coal gangue is a solid waste that is rich in SiO 2 and Al 2 O 3 , making it a potential substitute for the preparation of ceramic proppants. The use of coal gangue to prepare ceramic proppants can reduce the cost of ceramic proppants and benefit environmental protection. Studies on using coal gangue to prepare ceramic proppants have been conducted and achieved progress, but further improvement can still be obtained.Here, the basic principle, progress, and prospects of coal gangue ceramic proppants are reviewed. First, coal gangue ceramic proppants are divided into two categories, namely, proppants prepared using coal gangue as an auxiliary material and proppants prepared using coal gangue as the main material. Second, the progress of research of coal gangue ceramic proppants is summarized from the perspective of additives, and the influence of different kinds of additives on the sintering temperature and performance of proppants is discussed. Lastly, the future prospects of coal gangue ceramic proppants are presented.

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The Effect of Sintering Temperature on Phase Evolution and Sintering Mechanism of Ceramic Proppants with CaCO3 Addition

Cited by 3 publications

References 15 publications

Heating rate effect during sintering on the technological properties of Brazilian red ceramics

Heating rate effect during sintering on the technological properties of Brazilian red ceramics

Heating Rate Effect during Sintering on the Technological Properties of Brazilian Red Ceramics

Basic principle, progress, and prospects of coal gangue ceramic proppants

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