Effect of boron inclusion in SiOC polymer derived matrix on the mechanical and oxidation resistance properties of fiber reinforced composites

Vijay, Vipin; Siva, Subramania; Sreejith, K. J.; Prabhakaran, P.V.; Devasia, Renjith

doi:10.1016/j.matchemphys.2017.11.010

Cited by 12 publications

(5 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A few studies on the stability of sol-gel-derived borosilicate glasses to high-temperature exposures in oxidizing gas environments, namely air, are available. [32][33][34][35] A study by Klonczinski et al exposed SiBOC glasses to air at 1300, 1400, and 1500°C for 20 hours, but characterization of the glasses post-exposure was limited to phase analysis by X-ray diffraction (XRD) and electrical resistance. 35 The other studies were limited by isothermal exposures for short times of 1 hour at a single temperature, such as 800, 32 1000, 33 or 1500°C.…”

Section: Mcfarland and Opilamentioning

confidence: 99%

“…[32][33][34][35] A study by Klonczinski et al exposed SiBOC glasses to air at 1300, 1400, and 1500°C for 20 hours, but characterization of the glasses post-exposure was limited to phase analysis by X-ray diffraction (XRD) and electrical resistance. 35 The other studies were limited by isothermal exposures for short times of 1 hour at a single temperature, such as 800, 32 1000, 33 or 1500°C. 34 TGA characterization of the SiBOC glasses showed the weight loss to be minor, ascribed to carbon oxidation, 32,34 and less than that of a sol-gel-derived silica glass, which was postulated to be due to increased stability of B-C bonds over carbon-carbon (C-C) bonds in the free carbon phase.…”

Section: Mcfarland and Opilamentioning

confidence: 99%

“…While carbon in SiOC glasses may fully oxidize, eventually leading to a carbon-free SiO 2 glass, the carbon in SiBOC glasses may not fully oxidize, indicating that the structure of a binary borosilicate glass synthesized by a melt process may not be fully obtained in borosilicate glasses synthesized by solgel methods. The TGA analysis in these studies [32][33][34] did not address weight loss due to boria volatility, known to occur in binary borosilicate glasses at high temperature, 14,26 such as at 1200°C 36 and above. 37 Boria volatility, characterized by X-ray photoelectron spectroscopy (XPS), was also found to occur at surfaces of thermally grown borosilicate glasses.…”

Section: Mcfarland and Opilamentioning

confidence: 99%

“…They were then exposed to high-temperature oxidizing environments to investigate their thermal stability. Questions on prior studies that investigated the thermal stability of solgel-derived borosilicate glasses [32][33][34][35] are answered. TGA was conducted on freestanding sol-gel-derived silica and borosilicate glasses exposed to relevant oxidation exposure temperatures at 800 and 1200°C for long times of 100 hours.…”

Section: Mcfarland and Opilamentioning

confidence: 99%

See 3 more Smart Citations

Investigations into the thermal stability of sol‐gel‐derived glasses as models for thermally grown oxides

McFarland

Opila

2020

J Am Ceram Soc

View full text Add to dashboard Cite

The thermal stability of sol-gel-derived silica and borosilicate glasses exposed to dry O 2 at 800 and 1200°C for 100 hours was characterized by weight change, thermal transitions, morphology, structure, and composition to investigate suitability as models for thermally grown oxides. Rapid weight loss was observed in the first few hours of isothermal exposure for borosilicate glasses, followed by constant weight loss at a low rate for the balance of the exposure. Weight loss resulted from loss of residual hydroxyl species retained from the sol-gel synthesis, and from oxidation of carbon retained from thermal decomposition of the organic precursors by pyrolysis. Characterization of the sol-gel-derived glasses showed structural similarities to silica and binary borosilicate glasses synthesized by melt or vapor deposition methods, and to thermally grown oxides. Oxygen transport mechanisms through the sol-gel-derived glasses is not thought to be affected by the retained carbon. However, a silicaenriched glass surface resulting from boria volatility, observed from a borosilicate glass exposed dry O 2 at 1200°C, will slow O 2 transport rates. The results show that sol-gel-derived silica and borosilicate glasses can be used as models for thermally grown oxides.

show abstract

Section: Mcfarland and Opilamentioning

confidence: 99%

Section: Mcfarland and Opilamentioning

confidence: 99%

Section: Mcfarland and Opilamentioning

confidence: 99%

Section: Mcfarland and Opilamentioning

confidence: 99%

See 2 more Smart Citations

Investigations into the thermal stability of sol‐gel‐derived glasses as models for thermally grown oxides

McFarland

Opila

2020

J Am Ceram Soc

View full text Add to dashboard Cite

show abstract

“…As a result of the experiments, the addition of boron has been found to significantly increase the fracture toughness. 15…”

Section: Introductionmentioning

confidence: 99%

The effect of hexagonal nano boron nitride on mechanical performances and machinability behaviors of basalt fabric reinforced epoxy composites

Gumus

Ceritbinmez

Yapıcı

2021

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

The aim of this work is to investigate the effect of the hexagonal nano boron nitride (h-BN) doped epoxy on the mechanical performances and machinability behaviors of basalt fiber (BF) composites. The h-BN has used as a dopant with a weight rate of 1 wt. %. The polymer composites were prepared by the vacuum bagging method and specimens were processed with abrasive water jet machining (AWJM) to analyze the machinability of the material. A circular hole with an 8 mm size was machined by abrasive water jet (AWJ) on the composite plate with a thickness of 2.3 ± 0.1 mm using the garnet size of 80 µm as an abrasive. Taper angle and circularity of machined hole, the entry-exit hole diameter, delamination, splintering, burring, thickness, and hardness were measured. Results indicate that cutting speed has a high influence on the taper angle and circularity respectively.

show abstract

Carbon Fiber Composites

Perumal

Nambiar

Sellamuthu

et al. 2020

Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications

View full text Add to dashboard Cite

Effect of boron inclusion in SiOC polymer derived matrix on the mechanical and oxidation resistance properties of fiber reinforced composites

Cited by 12 publications

References 11 publications

Investigations into the thermal stability of sol‐gel‐derived glasses as models for thermally grown oxides

Investigations into the thermal stability of sol‐gel‐derived glasses as models for thermally grown oxides

The effect of hexagonal nano boron nitride on mechanical performances and machinability behaviors of basalt fabric reinforced epoxy composites

Carbon Fiber Composites

Contact Info

Product

Resources

About