Preparation of a hybrid preceramic precursor for Al-Si-C-N nanocomposites via a molecular building block approach

Seiichi Koyama; Hiroaki Nakashima; Yoshiyuki Sugahara; Kazuyuki Kuroda

doi:10.1246/cl.1998.191

Preparation of a hybrid preceramic precursor for Al-Si-C-N nanocomposites via a molecular building block approach

Seiichi Koyama^*, Hiroaki Nakashima, Yoshiyuki Sugahara, Kazuyuki Kuroda

^*Corresponding author for this work

School of Advanced Science and Engineering

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

The reaction between (HAINPrⁱ)_m (Prⁱ=CH(CH₃)₂) and [MeSi(H)NH]_n (Me=CH₃) led to hydrogen elimination to form a hybrid precursor. Thermogravimetry revealed that the ceramic yield of the hybrid precursor was much higher than those of (HAINPrⁱ)_m and [MeSi(H)NH]_n, which was ascribed to the hydrogen elimination condensation between the AlH groups in (HAINPrⁱ)_m and the NH groups in [MeSi(H)NH]_n during precursor synthesis and pyrolysis. The pyrolyzed product under Ar was a mixture of β-SiC, β-Si₃N₄ and 2H wurtzite-type compound, and the particle sizes were in the range of 20-30 nm.

Original language	English
Pages (from-to)	191-192
Number of pages	2
Journal	Chemistry Letters
Issue number	2
DOIs	https://doi.org/10.1246/cl.1998.191
Publication status	Published - 1998 Jan 1

ASJC Scopus subject areas

Chemistry(all)

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10.1246/cl.1998.191

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title = "Preparation of a hybrid preceramic precursor for Al-Si-C-N nanocomposites via a molecular building block approach",

abstract = "The reaction between (HAINPri)m (Pri=CH(CH3)2) and [MeSi(H)NH]n (Me=CH3) led to hydrogen elimination to form a hybrid precursor. Thermogravimetry revealed that the ceramic yield of the hybrid precursor was much higher than those of (HAINPri)m and [MeSi(H)NH]n, which was ascribed to the hydrogen elimination condensation between the AlH groups in (HAINPri)m and the NH groups in [MeSi(H)NH]n during precursor synthesis and pyrolysis. The pyrolyzed product under Ar was a mixture of β-SiC, β-Si3N4 and 2H wurtzite-type compound, and the particle sizes were in the range of 20-30 nm.",

author = "Seiichi Koyama and Hiroaki Nakashima and Yoshiyuki Sugahara and Kazuyuki Kuroda",

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T1 - Preparation of a hybrid preceramic precursor for Al-Si-C-N nanocomposites via a molecular building block approach

AU - Koyama, Seiichi

AU - Nakashima, Hiroaki

AU - Sugahara, Yoshiyuki

AU - Kuroda, Kazuyuki

PY - 1998/1/1

Y1 - 1998/1/1

N2 - The reaction between (HAINPri)m (Pri=CH(CH3)2) and [MeSi(H)NH]n (Me=CH3) led to hydrogen elimination to form a hybrid precursor. Thermogravimetry revealed that the ceramic yield of the hybrid precursor was much higher than those of (HAINPri)m and [MeSi(H)NH]n, which was ascribed to the hydrogen elimination condensation between the AlH groups in (HAINPri)m and the NH groups in [MeSi(H)NH]n during precursor synthesis and pyrolysis. The pyrolyzed product under Ar was a mixture of β-SiC, β-Si3N4 and 2H wurtzite-type compound, and the particle sizes were in the range of 20-30 nm.

AB - The reaction between (HAINPri)m (Pri=CH(CH3)2) and [MeSi(H)NH]n (Me=CH3) led to hydrogen elimination to form a hybrid precursor. Thermogravimetry revealed that the ceramic yield of the hybrid precursor was much higher than those of (HAINPri)m and [MeSi(H)NH]n, which was ascribed to the hydrogen elimination condensation between the AlH groups in (HAINPri)m and the NH groups in [MeSi(H)NH]n during precursor synthesis and pyrolysis. The pyrolyzed product under Ar was a mixture of β-SiC, β-Si3N4 and 2H wurtzite-type compound, and the particle sizes were in the range of 20-30 nm.

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Preparation of a hybrid preceramic precursor for Al-Si-C-N nanocomposites via a molecular building block approach

Abstract

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