Synthesis of Polycrystalline ZrO<sub>2</sub>—CaO Fibres by Sol-Gel Processing and their Characterization

Chatterjee, Minati; Naskar, Milan Kanti; Ganguli, Dibyendu

doi:10.1080/0371750x.1993.10804574

Cited by 4 publications

(1 citation statement)

References 18 publications

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“…The solution spectrum of this system (curve 6 in Fig. 1) suggested the presence of peroxy species causing complex polymerization of zirconium acetato complex with peroxy group [15,16] inferring the complexation of acetate group with ZOO in the aged solution. It is interesting to note that freshly prepared solutions of different acid concentration A1 to A5 also exhibited absorption band at "-,270 nm (inset (a) of Fig.…”

Section: Precursor Solutionsmentioning

confidence: 96%

Chemical behaviour of zirconium oxychloride octahydrate and acetic acid in precursor solution for zirconia film formation on glass

Jana

Biswas

1997

J Sol-Gel Sci Technol

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Abstract. Precursor solutions for zirconia films on soda lime silica glass substrate were prepared from zirconium oxychloride octahydrate (ZOO) and acetic acid (HOAC) maintaining the mol ratios, [HOAC]/[ZOO] = 2, 4, 6, 8 and 10. A characteristic UV absorption band at -,~280 nm in the "-q20 h aged precursor solutions was identified for acetate group of the zirconium acetato complexed species. The presence of acetate ligand coordinated with either ZrOOH + or [Zr4(OH)s] 8+ or with both was predicted by the studies of UV spectra of aged solutions and FUR spectra of unbaked films on silicon wafer. Dipping technique was followed for film formation. and 6, detected the ionic species, Zr +, ZrO +, ZrO +, Na +, Ca +, Fe +, H + while the negative SIMS detected Oand CI-. The relative contents of the ionic species with respect to Zr + were dependent on the acid content of the precursors. Reflection (%) of the baked films in the UV region was also dependent on the acid content of the precursors. Electron diffraction pattern of the typical baked film derived from the precursor with [HOAC]/[ZOO] = 2 exhibited meta-stable cubic phase of zirconia and the grains were found to be elongated (aspect ratio, 2.00-2.33).

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Section: Precursor Solutionsmentioning

confidence: 96%

Chemical behaviour of zirconium oxychloride octahydrate and acetic acid in precursor solution for zirconia film formation on glass

Jana

Biswas

1997

J Sol-Gel Sci Technol

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show abstract

Near-net-shape fibre-reinforced ceramic matrix composites by the sol infiltration technique

et al. 2003

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Effects of processing parameters on the fabrication of near-net-shape fibre reinforced oxide ceramic matrix composites via sol–gel route

Naskar

Chatterjee

Dey

et al. 2004

Ceramics International

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Synthesis of Polycrystalline ZrO₂—CaO Fibres by Sol-Gel Processing and their Characterization

Cited by 4 publications

References 18 publications

Chemical behaviour of zirconium oxychloride octahydrate and acetic acid in precursor solution for zirconia film formation on glass

Chemical behaviour of zirconium oxychloride octahydrate and acetic acid in precursor solution for zirconia film formation on glass

Near-net-shape fibre-reinforced ceramic matrix composites by the sol infiltration technique

Effects of processing parameters on the fabrication of near-net-shape fibre reinforced oxide ceramic matrix composites via sol–gel route

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Synthesis of Polycrystalline ZrO2—CaO Fibres by Sol-Gel Processing and their Characterization

Cited by 4 publications

References 18 publications

Chemical behaviour of zirconium oxychloride octahydrate and acetic acid in precursor solution for zirconia film formation on glass

Chemical behaviour of zirconium oxychloride octahydrate and acetic acid in precursor solution for zirconia film formation on glass

Near-net-shape fibre-reinforced ceramic matrix composites by the sol infiltration technique

Effects of processing parameters on the fabrication of near-net-shape fibre reinforced oxide ceramic matrix composites via sol–gel route

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Synthesis of Polycrystalline ZrO₂—CaO Fibres by Sol-Gel Processing and their Characterization