Mechanical and Thermal Properties of a Self-Sealing Matrix Composite and Determination of the Life Time Duration

Purpose The purpose of this paper is to investigate the influence of binder effect on tribological behavior of brake friction composite materials: a case study of phenolic resin modified by N-Methylaniline. Design/methodology/approach Four different friction materials have been fabricated by varying modified phenolic resin content. The samples were prepared by the conventional powder metallurgy methods following ball milling, mixing, pre-forming, hot pressing and post-curing processes. Thermogravimetric analysis was used to determination of the degradation mechanism of organic components and study of thermal stability of the samples. A friction test was carried out in dry conditions using a vertical tribometer. Analysis of worn surfaces was performed using a scanning electron microscope. Findings The experimental results revealed that the sample containing 25 Wt.% phenolic resin has good mechanical and thermal properties with stable friction characteristics. Originality/value This paper presents the effect of N-methylaniline modified phenolic resin on friction composites to improve tribological performance by its thermal properties.

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Mechanical and thermal properties of double-layer and triple-layer thermal barrier coatings with different ceramic top coats onto polyimide matrix composite

Ceramics International ◽

10.1016/j.ceramint.2017.06.164 ◽

2017 ◽

Vol 43 (15) ◽

pp. 12770-12780 ◽

Cited By ~ 6

Author(s):

H.R. Abedi ◽

M. Salehi ◽

A. Shafyei

Keyword(s):

Thermal Properties ◽

Thermal Barrier Coatings ◽

Double Layer ◽

Matrix Composite ◽

Thermal Barrier ◽

Mechanical And Thermal Properties ◽

Barrier Coatings ◽

Triple Layer ◽

Polyimide Matrix

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Determination of Some Mechanical and Thermal Properties of Cattle Manure Pellets

IRA-International Journal of Applied Sciences (ISSN 2455-4499) ◽

10.21013/jas.v9.n1.p1 ◽

2017 ◽

Vol 9 (1) ◽

pp. 1

Author(s):

Javad Rezaeifar ◽

Mansoureh Pourjafar

Keyword(s):

Shear Stress ◽

Thermal Properties ◽

Thermal Diffusivity ◽

Organic Materials ◽

Cattle Manure ◽

Natural State ◽

Mechanical And Thermal Properties ◽

Livestock Waste ◽

Valuable Source

<p>One of the important subsidiary materials of livestock units is excreta. The livestock waste (including the combination of the Cattle Manure and products case in the bed) as a valuable source of the minerals (Nitrogen 1.78 % , phosphor us 0.5% and potassium 0.99%).For the transportation of the cattle manure in the natural state is difficult and costly due to being low the special mass and the nature of mass. It is produced around 6 million thons the cattle manure yearly in Iran which it is usually filled in the place according to the lack of organic materials of the soils country, the use of the cattle manure causes increasing the productivity of crops. We usually need to some of the mechanical and thermal properties of the cattle manure for producing the pellet by Extruder, so we Survey some of the mechanical and thermal properties of the cattle manure pellet in this research such as the shear stress and the coefficient of thermal diffusivity cattle manure. We obtain the coefficient of the thermal diffusivity manure (</p>

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Electrical, mechanical and temperature characterization of commercialy available LTCC dielectric materials

Hemijska industrija ◽

10.2298/hemind120713105r ◽

2013 ◽

Vol 67 (4) ◽

pp. 621-628 ◽

Cited By ~ 1

Author(s):

Goran Radosavljevic ◽

Andrea Maric ◽

Michael Unger ◽

Nelu Blaz ◽

Walter Smetana ◽

...

Keyword(s):

Thermal Properties ◽

Chemical Composition ◽

Dielectric Materials ◽

Accurate Information ◽

Composition Analysis ◽

Mechanical And Thermal Properties ◽

Thermal Coefficient ◽

Technical Documentation ◽

Successful Design

Presented paper deals with mechanical, electrical and thermal properties of several commercially available materials that are widely used for fabrication of electronic components, sensor systems etc. In the LTCC (Low Temperature Co-fired Technology). Having complete and accurate information of material chemical composition, its electrical and mechanical properties are essential for successful design of various components and/or systems. In many cases, available technical documentation provided by the manufacturers contains less information than designers require for complete pre-design analysis of system behavior in real time environment. Three offently exploited commercialy available dielectric materials provided by Heraeus company (Heraeus CT700, Heraeus CT707 and Heraeus CT800) are investigated. Electrical, mechanical and thermal properties analyses have been conducted in order to determine some of the important material properties. A full chemical composition analysis was performed resulting in determination of materials' chemical composition, followed with determination of relative permittivity value, elasticity modulus and relative thermal coefficient value.

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