Diopside porcelain

Alekseev, Yu. I.; Abakumov, A. E.; Abakumova, Ekaterina

doi:10.1007/bf00678700

Glass Ceram

1995

DOI: 10.1007/bf00678700

|View full text |Cite

Diopside porcelain

Yu. I. Alekseev

A. E. Abakumov

Ekaterina Abakumova

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

1998

2021

Publication Types

Select...

Article3

Relationship

Self Cite1

Independent2

Authors

Journals

Cited by 3 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…After firing, the intensity of peaks PI and P 3 increase significantly without changing their position on the temperature scale. The intensity of peak P z after firing decreases almost by half, and its maximum on the temperature scale is shifted to 416 K. These results correlate with the changes in the intensity of the main lines of diopsidite x-ray reflections mentioned above [5].…”

supporting

confidence: 75%

See 1 more Smart Citation

Thermoluminiscence analysis of raw and ceramic materials

Galanov

Alekseev

1998

Glass Ceram

Self Cite

View full text Add to dashboard Cite

A method for analysis of silicate materials based on excitation of the materials with x-ray radiation and subsequent recording of thermally stimulated luminescence is considered. The possibility of analyzing the structure of raw materials and ceramics using the method proposed is displayed.One of the areas of research and improvement of the production of the raw materials and ceramic products is the application of non-traditional investigation methods, such as thennoluminiscence analysis, in addition to the traditional ones (DTA, radiography etc.) [I]. The method of thermally stimulated luminescence (TSL), in contrast to the traditional ones, makes it possible to perform fast analysis of physicochemical processes in different stages of ceramic production including the sintering stage.In the present experiment, the sintering of diopside ceramics of different compositions was tested by the traditional methods and by measuring TSL in the samples excited by x-rays.The raw material and ceramic samples were excited byx-rays emitted by a BSV-2 (Mo) tube with voltage of 50 kV and current of20 mAo The distance from the tube focus to the sample was 6 em. The excitation duration varied from 1 to 300 min. After exposure, the samples were heated in air at the rate of 8 K/min. The temperature of the samples within the range of 300 -600 K was measured with a chromel-alumel thermocouple. The integral luminescence was registered with a FEU-39A photoelectronic multiplier, and the data from the instruments were recorded with a two-coordinate potentiometer. The materials, mixtures and diopside and steatite ceramic samples were prepared in accordance with standard sintering technology [2]. Firing was carried out in an electric furnace with Silit heaters.One of the basic objects of investigation was diopside S-19 from Slyudyanskii deposit in the Irkutsk Region (diopside 95%, calcite 3.6%, quartz 0.7%, impurity oxides Ti0 2, Al z03, Fe203' MnO, Na20, KzO, P 2 0 S comprise in sum 0.7%). Visually and seen with a microscope, diopsidite is a bright white powder with particles sizes from fractions of a

show abstract

supporting

confidence: 75%

“…Both polytypes are preserved up to firing temperatures of 1473 -1523 K, and the transition ofthe first polytype into the second one depends to a great extent on the presence of impurity minerals in the material. [5]. This process is unambiguously recorded in the analysis ofthis material with TSL method.…”

mentioning

confidence: 99%

Thermoluminiscence analysis of raw and ceramic materials

Galanov

Alekseev

1998

Glass Ceram

Self Cite

View full text Add to dashboard Cite

show abstract

“…The use of diopside-rich rock, replacing up to 20 wt% of the potassic feldspar added to ceramic bodies improves their technical features, reducing water absorption while maintaining constant the drying linear retraction and increasing the flexural resistance, for porcelains produced at low temperature. The use of diopside, not only on ceramic, was investigated in the past by several authors [1][2][3][4][5][6]. In Brazil, however, studies of technological application of diopside-rich rock are still restricted [7][8][9].…”

mentioning

confidence: 99%

Influence of diopside: feldspar ratio in ceramic reactions assessed by quantitative phase analysis (X-ray diffraction - Rietveld method)

Kuzmickas¹,

Andrade²,

Szabó³

et al. 2013

Cerâmica

View full text Add to dashboard Cite

Diopside is widely recognized as a raw material for glass-ceramic, due to its relatively low melting point and the low viscosity of the melt. The use of diopside-rich rock, replacing up to 20 wt% of the potassic feldspar added to ceramic bodies improves their technical features, reducing water absorption while maintaining constant the drying linear retraction and increasing the flexural resistance, for porcelains produced at low temperature. The use of diopside, not only on ceramic, was investigated in the past by several authors [1][2][3][4][5][6]. In Brazil, however, studies of technological application of diopside-rich rock are still restricted [7][8][9].Diopside-rich rock used in the present study was collected in Castro Alves district (Bahia, northeastern Brazil). The geological setting of the area refers to the S. Francisco Craton, with metamorphic rocks of granulite to high amphibolite facies that belong to the Jequié and Caraíba Complexes. The Caraíba Complex has lense-shaped bodies of diopside-rich rock, which may reach up to 700 m in length and 200 m in width, usually aligned in the NW-SE direction. These diopside-rich rocks are deformed and cut by granites and pegmatites, with intrusive breccias and veins. Diopsiderich rock is mainly composed by diopside, with minor amounts of tremolite, feldspar, quartz, carbonates, titanite, garnet, epidote and tourmaline -nevertheless, the wholerock chemical composition is close to the stoichiometric composition of diopside (MgCaSi 2 O 6 ). dias@usp.br, gajszabo@usp.b, motta.jf@gmail.com, marsis@ipt.br Abstract White ceramics were produced with raw mixtures prepared with varying proportions of diopside-rich rock (0 to 20 wt.%) and potassic feldspar (40 to 20 wt.%), and fixed proportions of kaolinite (40 wt.%) and quartz (20 wt.%), fired in a temperature range from 1170 to 1210 o C. The phases identified in the experimental ceramics were quartz, anorthite, mullite and glass, and their relative mass proportions were determined by X-ray diffraction (Rietveld method). The addition of diopside as a partial substitute for potassic feldspar causes the formation of a calcium silicate, analogous of the natural anorthite (CaSi 2 Al 2 O 8 ) in the ceramics, with proportional reduction in its glass and mullite contents. Water absorption and porosity of the ceramic bodies clearly decrease with increasing firing temperature, while the effect of the raw mixture composition on the physical and mechanical properties of the ceramics is less evident. Diopside-rich rock has low iron content (1.5 wt.% Fe 2 O 3 ) and, therefore, promotes white burning.

show abstract

Effect of strong mineral fluxes on sintering of porcelain stoneware tiles

Brasileiro

Conte

Contartesi

et al. 2021

Journal of the European Ceramic Society

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

hi@scite.ai

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Diopside porcelain

Cited by 3 publications

References 0 publications

Thermoluminiscence analysis of raw and ceramic materials

Thermoluminiscence analysis of raw and ceramic materials

Influence of diopside: feldspar ratio in ceramic reactions assessed by quantitative phase analysis (X-ray diffraction - Rietveld method)

Effect of strong mineral fluxes on sintering of porcelain stoneware tiles

Contact Info

Product

Resources

About