Production of Al-SiC-TiC hybrid composites using pure and 1056 aluminum powders prepared through microwave and conventional heating methods

Ghasali, Ehsan; Yazdani-Rad, R.; Asadian, Keivan; Ebadzadeh, Touradj

doi:10.1016/j.jallcom.2016.08.145

Cited by 84 publications

(23 citation statements)

References 31 publications

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“…The ultimate goal of this technology is to produce high-quality bio-oil, which is able to compete with and eventually partially replace the nonrenewable fossil fuels for direct use in micro gas turbines for power generation, and other sustainable products such as bioplastics and platform chemicals. Many researches are interested in the application of microwave irradiation, not only due to its ability to enhance the reaction rates and rapid heating, but also for its ability to revolutionize the chemical reactions bringing about products and reactions' performance with unexpected results (19)(20)(21). Among the important benefits of microwave-assisted reactions are rapid heating, lower relative energy consumption, environmental friendliness, higher production yield, controllable processing, shorter processing time, and quality and properties' improvement.…”

Section: Introductionmentioning

confidence: 99%

Sustainability of biodiesel production in Malaysia by production of bio-oil from crude glycerol using microwave pyrolysis: a review

Nomanbhay

Hussein

Ong

2018

Green Chemistry Letters and Reviews

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Biodiesel being one of the most promising renewable biofuels has seen rapid increase in production capacity due to high demand for diesel replacement; along with oversupply of its by-product, crude glycerol. Developing new industrial usage for glycerol is essential to defray the cost and sustainability of biodiesel industry and to promote the biodiesel industrialization. One of the approaches is by the transformation of glycerol into a liquid, referred as bio-oil through pyrolysis technology. Bio-oils produced by pyrolysis processes can be upgraded to produce transportation fuels or for power generation. However, current state of pyrolysis technologies are still major hurdles their development with respect to its commercial applications. Recently, microwave technology has attracted considerable attention as effective method for significantly reducing reaction time, improving the yields and selectivity of target products. Hence, this review strives extensively towards addressing the application of microwave-assisted technology applied to the pyrolysis process as a way of cost-effective and operationally feasible processes to directly utilize crude glycerol. The present review will focus on the pyrolyzed liquid product (bio-oil) derived by employing the microwave-assisted pyrolysis method. This review concludes that microwaveassisted glycerol conversion technology is a promising option as an alternative method to conventional glycerol conversion technology.

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Section: Introductionmentioning

confidence: 99%

Sustainability of biodiesel production in Malaysia by production of bio-oil from crude glycerol using microwave pyrolysis: a review

Nomanbhay

Hussein

Ong

2018

Green Chemistry Letters and Reviews

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“…As shown in the Figure (a) insert, the regular crystallization of the graphite displays three characteristic peaks at about 26° (002), 44° (101), and 54° (004), according to the previous literature . However, a very strong parasitic peak of Gr at 38° in the XRD pattern is observed due to its purity and other issues such as organic or mineral, as reported in the relevant literature . The diffraction peak from VO 2 is observed at 2θ = 28°.…”

Section: Resultsmentioning

confidence: 98%

Thermally induced double‐positive temperature coefficients of electrical resistivity in combined conductive filler–doped polymer composites

Hou

Zhang

Xie

2017

J of Applied Polymer Sci

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Polymer composites of low-density polyethylene/polypropylene/graphite/vanadium dioxide (LDPE 0.8 /PP 0.2 /Gr 0.4 /VO 2 ) are prepared by classical melt-mixing technology and show a notable double positive temperature coefficient of electric resistivity (PTC), which originates from the combined effect of highly conductive Gr and VO 2 with a thermal phase transition. When the weight ratio of VO 2 is 8 wt %, the positive temperature coefficient intensity (PTCI) for the composites reaches 3.85 orders of magnitude. The model system demonstrates the reason for the improvement in the PTC performance of the polymer composites by analyzing the construction of the conductive networks. Therefore, the addition of phase-transition compounds may be a promising path to improving PTC materials.

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“…From the various types of materials, Al 2 O 3 is the most usual ceramic, forming a composite matrix by reinforcing with others materials [48,49]. Alumina have constantly been considered proper for aerospace applications both at ambient and at elevated temperatures.…”

Section: Ultra-high Temperature Ceramicsmentioning

confidence: 99%

Ceramic Composite Materials Obtained by Electron-Beam Physical Vapor Deposition Used as Thermal Barriers in the Aerospace Industry

et al. 2020

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This paper is focused on the basic properties of ceramic composite materials used as thermal barrier coatings in the aerospace industry like SiC, ZrC, ZrB 2 etc., and summarizes some principal properties for thermal barrier coatings. Although the aerospace industry is mainly based on metallic materials, a more attractive approach is represented by ceramic materials that are often more resistant to corrosion, oxidation and wear having at the same time suitable thermal properties. It is known that the space environment presents extreme conditions that challenge aerospace scientists, but simultaneously, presents opportunities to produce materials that behave almost ideally in this environment. Used even today, metal-matrix composites (MMCs) have been developed since the beginning of the space era due to their high specific stiffness and low thermal expansion coefficient. These types of composites possess properties such as high-temperature resistance and high strength, and those potential benefits led to the use of MMCs for supreme space system requirements in the late 1980s. Electron beam physical vapor deposition (EB-PVD) is the technology that helps to obtain the composite materials that ultimately have optimal properties for the space environment, and ceramics that broadly meet the requirements for the space industry can be silicon carbide that has been developed as a standard material very quickly, possessing many advantages. One of the most promising ceramics for ultrahigh temperature applications could be zirconium carbide (ZrC) because of its remarkable properties and the competence to form unwilling oxide scales at high temperatures, but at the same time it is known that no material can have all the ideal properties. Another promising material in coating for components used for ultra-high temperature applications as thermal protection systems is zirconium diboride (ZrB 2 ), due to its high melting point, high thermal conductivities, and relatively low density. Some composite ceramic materials like carbon-carbon fiber reinforced SiC, SiC-SiC, ZrC-SiC, ZrB 2 -SiC, etc., possessing low thermal conductivities have been used as thermal barrier coating (TBC) materials to increase turbine inlet temperatures since the 1960s. With increasing engine efficiency, they can reduce metal surface temperatures and prolong the lifetime of the hot sections of aero-engines and land-based turbines.

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Production of Al-SiC-TiC hybrid composites using pure and 1056 aluminum powders prepared through microwave and conventional heating methods

Cited by 84 publications

References 31 publications

Sustainability of biodiesel production in Malaysia by production of bio-oil from crude glycerol using microwave pyrolysis: a review

Sustainability of biodiesel production in Malaysia by production of bio-oil from crude glycerol using microwave pyrolysis: a review

Thermally induced double‐positive temperature coefficients of electrical resistivity in combined conductive filler–doped polymer composites

Ceramic Composite Materials Obtained by Electron-Beam Physical Vapor Deposition Used as Thermal Barriers in the Aerospace Industry

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