The wear debris from conventional brake pads is a growing source of environmental contamination that often leads to life-threatening diseases for human beings. Though the emerging organic show potential serve as an eco-friendly alternative, their mechanical and tribological properties are not adequate withstand demands high-wear resistance functioning braking system under regular use. Metal mat...

This paper deals with metal matrix composites (MMCs) of Al 7075 alloy containing different weight percentage (2.5, 5, 7.5, and 10) basalt short fiber reinforcement and unreinforced matrix alloy. The samples were produced by the permanent stir casting technique. The casting ingots were cut into blanks to be forged in single stage and double stage, using MN press and graphite-based lubricant. The...

BACKGROUND & OBJECTIVES Available literature shows paucity of reports describing antibiotic and metal resistance profile of biofilm forming clinical isolates of Acinetobacter haemolyticus. The present study was undertaken to evaluate the antibiotic and metal resistance profile of Indian clinical isolate of A. haemolyticus MMC 8 isolated from human pus sample in planktonic and biofilm form. ME...

Maximum margin criterion (MMC) is a well-known method for feature extraction and dimensionality reduction. However, MMC is based on vector data and fails to exploit local characteristics of image data. In this paper, we propose a two-dimensional generalized framework based on a block-wise approach for MMC, to deal with matrix representation data, that is, images. The proposed method, namely, bl...

Abstract The problems associated with the fabrication of in situ metal matrix composites (MMC) by conventional methods can be avoided using microwave sintering and friction stirring combination. current study investigates mechanical electrical properties pure aluminum (Al-100 wt%) Al-Cu MMC. results showed that excellent ultimate tensile strength, toughness, conductivity acquired simultaneously...

Metal-matrix composites (MMCs) are used in a large number of high-performance applications. In 2004, more than 3.5 million kg of MMCs were used and the number is increasing rapidly, with an annual growth rate exceeding 6%. Most of the current MMC applications are in ground transportation, aviation, electronics, and sports industries. The initial discovery of the synthesis of cast aluminum-matri...

Microenvironment plays an important role for stem cell proliferation and differentiation. Macromolecular crowding (MMC) was recently shown to assist stem cells in forming their own matrix microenvironment in vitro. The ability of MMC to support adipose stem cell (ASC) proliferation, metabolism, and multilineage differentiation was studied under different conditions: fetal bovine serum- (FBS-) and ...

The automobile industry uses magnesium for load-bearing components due to its low density, durability, and ductility. This study investigated a nanocomposite containing Nb2O5 (3 6 wt%) nanoparticles as reinforcement with AZ31 alloy made by stir casting. A severe plastic deformation was conducted on the cast samples via equal-channel angular pressing (ECAP) after homogenization at 410 °C 24 h ag...

Water-based lubrication faces the common challenge of component lifetime extension which is impaired by tribocorrosion due to material surface depassivation. However, such mechanisms in a pH-neutral and low-halide electrolyte require additional understanding. A ball-on-flat configuration study hard-phase materials low amplitude–high frequency sliding contact against martensitic chromium steel w...

In order to evaluate the uniform of SiCp reinforced aluminum metal-matrix composites (MMC) fabricated by powder metallurgy, the ultrasonic velocity imaging was carried out with the method of thickness independent reflector plate (TIRP). Ultrasonic velocity in MMC can be used to calculate the stiffness constants and Yang’s modulus, which are influenced by the volume percentage of SiCp. The TIRP ...