β‐Sialon Ceramics Prepared at 1700°C by Hot Isostatic Pressing

Ekström, Thommy; Olsson, Per-Olof

doi:10.1111/j.1151-2916.1989.tb06311.x

Cited by 35 publications

(3 citation statements)

References 5 publications

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“…X-Ray patterns of three composites (SN-6, SN-7, SN-8) sintered at 1500˚C are offered on Figures 8-10. SN-6 composite mainly consists of β-SiALON [21]- [25]. It showed diffraction maximums characteristic to carbide and corundum.…”

Section: Main Partmentioning

confidence: 99%

Obtaining of Nanocomposites in SiC-SiAlON and Al2O3-SiAlON System by Alumothermal Processes

Kovziridze¹,

Nizharadze²,

Tabatadze³

et al. 2014

JECTC

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Composites were obtained in the in SiC-SiAlON and Al 2 O 3 -SiAlON system. Physical-chemical processes going on at the obtaining of SiALON within the range of 800˚C -1500˚C were studied. Charge compositions and sintering regime were selected. It was proved that X-SiALON was obtained at the sintering of kaolin-aluminum powder at 1500˚C, while β-SiALON was formed at the sintering of SiC-Aluminum powder, silicium and Al 2 O 3 -aluminum powder, silicium at 1500˚C. Corrosion properties of the materials were studied. Investigations were performed by the methods of X-Ray structural and microscopical analysis.

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Section: Main Partmentioning

confidence: 99%

Obtaining of Nanocomposites in SiC-SiAlON and Al2O3-SiAlON System by Alumothermal Processes

Kovziridze¹,

Nizharadze²,

Tabatadze³

et al. 2014

JECTC

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“…Y 2 O 3 or CaO of 1% to 3% are added in the preparation of β-Sialon, which forms a glassy intergranular phase among the β-Sialon crystals. The presence of a substantial amount of glassy phase will adversely affect the high-temperature properties of the materials [3].…”

Section: Introductionmentioning

confidence: 99%

Preparation of β-SiAlON Powder at Low Temperature

Chen

et al. 2007

KEM

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In this article, the β–Sialon with average diameter size less than 20µm is prepared and researched by use of aluminum, silicon, and corundum at 1300°C holding temperature for 8h under nitrogen atmosphere. The preparation temperature of β–Sialon powder was optimized according to the results from the experiments that different aluminum and silicon reacted with pure nitrogen at different temperature. The reaction at the preparation of β–Sialon powder was discussed by thermodynamic calculation. The reaction mechanism was investigated by x–ray diffraction (XRD) and scanning electron microscope (SEM) was discussed in detail.

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“…Silicon nitride based and sialon ceramics have been widely studied for more than 40 years, since they offer an excellent combination of mechanical, thermal and chemical properties [1][2][3][4]. Nitride based ceramics as structural materials are generally densified by hot pressing, hot isostatic pressing or gas pressure sintering methods.…”

Section: Introductionmentioning

confidence: 99%

The Effect of SiAlON Precursor Nanostructurization in a Planetary Mill on the Properties of Sintered Ceramics

Sopicka-Lizer

Pawlik

Włodek

et al. 2007

KEM

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The results on the effect of nanostructured β-sialon precursor on the sintering and properties of the resultant ceramics are presented. The standard mixture of β-sialon precursor with 0.4z substitution degree was activated for 30 min in a planetary mill with an acceleration of 28g. Activation in the planetary mill resulted in diminution of the crystallite size and significant imperfection of the crystal lattice of the powder particles. The sintering experiments were performed at 1450-1600 °C in a powder bed. The relative density of the sintered bodies achieved the value of 97 %. The nanostructured material was produced after pressureless sintering at 1500 °C. It is concluded that high activation degree of the powders is necessary to obtain fully dense ceramics.

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β‐Sialon Ceramics Prepared at 1700°C by Hot Isostatic Pressing

Cited by 35 publications

References 5 publications

Obtaining of Nanocomposites in SiC-SiAlON and Al<sub>2</sub>O<sub>3</sub>-SiAlON System by Alumothermal Processes

Obtaining of Nanocomposites in SiC-SiAlON and Al<sub>2</sub>O<sub>3</sub>-SiAlON System by Alumothermal Processes

Preparation of β-SiAlON Powder at Low Temperature

The Effect of SiAlON Precursor Nanostructurization in a Planetary Mill on the Properties of Sintered Ceramics

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β‐Sialon Ceramics Prepared at 1700°C by Hot Isostatic Pressing

Cited by 35 publications

References 5 publications

Obtaining of Nanocomposites in SiC-SiAlON and Al&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt;-SiAlON System by Alumothermal Processes

Obtaining of Nanocomposites in SiC-SiAlON and Al&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt;-SiAlON System by Alumothermal Processes

Preparation of β-SiAlON Powder at Low Temperature

The Effect of SiAlON Precursor Nanostructurization in a Planetary Mill on the Properties of Sintered Ceramics

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Obtaining of Nanocomposites in SiC-SiAlON and Al<sub>2</sub>O<sub>3</sub>-SiAlON System by Alumothermal Processes

Obtaining of Nanocomposites in SiC-SiAlON and Al<sub>2</sub>O<sub>3</sub>-SiAlON System by Alumothermal Processes