Materials

resistance, low thermal conductivity and increase fatigue life. Advantages of using composite material are:  Composites can provide a specific modulus (ratio of material stiffness to density) that is three and half to five times greater than steel or aluminum.  The fatigue endurance limit is much higher than for steel or aluminum.  Composites can provide a specific tensile strength (ratio of material stiffness to density) that is approximately four to six times greater than steel or aluminum.

that is blown, elongated or extruded to for a string like material. Fibreglass has an advantage over carbon in that the synthetic manufacture of fibreglass is easier as it does not require high temperatures to be produced. The material, however, has nearly similar physical properties to carbon regarding strength, weight and modulus of elasticity. In this laboratory report, we will investigate the tensile properties of the above two materials. Introduction The aim of the lab session

Frame materials Some of the materials that are used to make bicycle frames include Steel, Aluminium alloys, Titanium and Carbon fibre. Below is a brief description of Steel, Aluminium and Titanium in relation to bicycle frames. Thereafter is a more detailed study and comparison of each of the different properties of a bicycle frame under the candidate materials. This will provide the basis for choosing the best material for the job. Steel – Steel is the most ordinarily utilized material as a part

Cold deformation process of metals causes distortion of crystalline structure. When a material is formed, the grains are usually distorted and elongated in one or more directions which make the material anisotropic. Anisotropy can be defined as a difference in a material's physical or mechanical properties in different directions of taking of testing samples. In exploitation, it is very important to recognize the direction of grain elongation so that the best orientation of working part can be chosen

In the 1960’s several attempts were made to use Deere’s RQD for estimating in-situ deformation modulus, but this approach is seldom used today (Deere 1988). Some theoretical expressions have been derived for simple joint geometries derived a mathematical procedure to calculate the deformation modulus of an equivalent continuum for a randomly jointed rock mass. However, these simple expressions are inadequate as they assume the discontinuities are dispersed in a regular manner that is not realistic

In advanced applications, the design of some structures, such as those in spacecraft, jet fighters and automobiles which require lightweight strength and have highly structural damping properties, is faced with great difficulty due to the fact that the decreased weight results in low rigidity and reacts with vibration characteristics. Vibration must be effectively controlled, otherwise it could be uncomfortable for humans, increase fatigue, cause instability and could result in damage to the entire

[46], there have been continuous efforts to incorporate CNTs into various types of epoxy resins to fabricate functional composite materials with desirable electrical and mechanical properties. They reported a simple method to produce aligned arrays of CNTs into the epoxy matrix. MWCNTs produced by arc-discharge and purified nanotubes in ethanol were randomly dispersed in a liquid epoxy

The Paint and Varnishes Industry With a turnover of Rs. 8,970 Crores (FY 12-13), Asia Paints Ltd is India’s largest and Asia’s third largest company. The Company functions in 20 countries and has 28 manufacturing amenities across the world serving customers from almost 65 countries. It kicked off focusing on providing quality products in the economy ranges, but gradually changed its strategy into providing good quality and branded products to the upper end of the decorative paints market, establishing

Introduction Common categories of recycling include paper, plastics, metals, and glass. However, bio-waste is wasted every day as well as the other categories. Bio-waste is waste material capable of breaking down under aerobic or anaerobic conditions. Due to the nature of this waste it is easier to break down and recycle. Bio-waste is usually recycled through composting or using the scraps to feed other organisms (Dusseldorf, 1998). Businesses such as the one in this article, by Andy Watkins, show

example, all biological cells use self-assembling materials that are crucial for things like flexing muscles or breathing and respiration. Nano materials are used in man-made materials in the present too. For