Influencia del tamaño del material híbrido en las características de los oxicarburos de silicio obtenidos

M. A. Mazo; C. Palencia; A. Nistal; F. Rubio; J. Rubio; J. L. Oteo

doi:10.3989/cyv.232012

Influencia del tamaño del material híbrido en las características de los oxicarburos de silicio obtenidos

Translated title of the contribution: Influence of the hybrid material size in silicon oxycarbide materials characteristics

M. A. Mazo^*, C. Palencia, A. Nistal, F. Rubio, J. Rubio, J. L. Oteo

^*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

In this work has been investigated the influence of the TEOS/PDMS hybrid size during the pyrolysis process to obtain the related silicon oxycarbide glasses. Hybrids monolithic pieces (100 mm × 50 mm × 5 mm), were crushed (1 mm × 1 mm × 1 mm) and grounded in agate or attrition to 16 and 3 urn, respectively. Then, they were pyrolyzed at 1100 °C to obtain silicon oxycarbide glasses (SiOC). These materials present structural and microstructural differences. The monolithic sample showed the highest %C into the silica network (34 %), and after grounding in agate mortar decreased to 26 %. However the attrition milled sample reached %C values similar to the monolithic (32 %). This agrees with FT-IR band at 880 cm'¹ assigned to Si-C bonds formation and related to higher carbon content into silica network. The carbon free phase displays a domain size of 3.44 nm which increased to 3.66 nm for the attrition milled. This result is due to a higher graphitization degree. The SiOC monolithic sample morphology displays spherical interconnected particles with pores of 12 urn. This morphology disappeared for the SiOC attrition milled sample, formed by irregular particles of 3 pm.

Translated title of the contribution	Influence of the hybrid material size in silicon oxycarbide materials characteristics
Original language	Spanish
Pages (from-to)	157-164
Number of pages	8
Journal	Boletin de la Sociedad Espanola de Ceramica y Vidrio
Volume	51
Issue number	3
DOIs	https://doi.org/10.3989/cyv.232012
Publication status	Published - May 2012
Externally published	Yes

Keywords

Hybrid
Porosity
Pyrolysis
Silicon oxycarbide
Size

ASJC Scopus subject areas

Mechanics of Materials
Industrial and Manufacturing Engineering
Ceramics and Composites

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@article{14a5dc31c91045c2844ce75a3f12cf7b,

title = "Influencia del tama{\~n}o del material h{\'i}brido en las caracter{\'i}sticas de los oxicarburos de silicio obtenidos",

abstract = "In this work has been investigated the influence of the TEOS/PDMS hybrid size during the pyrolysis process to obtain the related silicon oxycarbide glasses. Hybrids monolithic pieces (100 mm × 50 mm × 5 mm), were crushed (1 mm × 1 mm × 1 mm) and grounded in agate or attrition to 16 and 3 urn, respectively. Then, they were pyrolyzed at 1100 °C to obtain silicon oxycarbide glasses (SiOC). These materials present structural and microstructural differences. The monolithic sample showed the highest %C into the silica network (34 %), and after grounding in agate mortar decreased to 26 %. However the attrition milled sample reached %C values similar to the monolithic (32 %). This agrees with FT-IR band at 880 cm'1 assigned to Si-C bonds formation and related to higher carbon content into silica network. The carbon free phase displays a domain size of 3.44 nm which increased to 3.66 nm for the attrition milled. This result is due to a higher graphitization degree. The SiOC monolithic sample morphology displays spherical interconnected particles with pores of 12 urn. This morphology disappeared for the SiOC attrition milled sample, formed by irregular particles of 3 pm.",

keywords = "Hybrid, Porosity, Pyrolysis, Silicon oxycarbide, Size",

author = "Mazo, {M. A.} and C. Palencia and A. Nistal and F. Rubio and J. Rubio and Oteo, {J. L.}",

year = "2012",

month = may,

doi = "10.3989/cyv.232012",

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volume = "51",

pages = "157--164",

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AU - Mazo, M. A.

AU - Palencia, C.

AU - Nistal, A.

AU - Rubio, F.

AU - Rubio, J.

AU - Oteo, J. L.

PY - 2012/5

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AB - In this work has been investigated the influence of the TEOS/PDMS hybrid size during the pyrolysis process to obtain the related silicon oxycarbide glasses. Hybrids monolithic pieces (100 mm × 50 mm × 5 mm), were crushed (1 mm × 1 mm × 1 mm) and grounded in agate or attrition to 16 and 3 urn, respectively. Then, they were pyrolyzed at 1100 °C to obtain silicon oxycarbide glasses (SiOC). These materials present structural and microstructural differences. The monolithic sample showed the highest %C into the silica network (34 %), and after grounding in agate mortar decreased to 26 %. However the attrition milled sample reached %C values similar to the monolithic (32 %). This agrees with FT-IR band at 880 cm'1 assigned to Si-C bonds formation and related to higher carbon content into silica network. The carbon free phase displays a domain size of 3.44 nm which increased to 3.66 nm for the attrition milled. This result is due to a higher graphitization degree. The SiOC monolithic sample morphology displays spherical interconnected particles with pores of 12 urn. This morphology disappeared for the SiOC attrition milled sample, formed by irregular particles of 3 pm.

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