Materials

The material of choice for gravestones today is generally granite, since it is durable and comes in a variety of crystalline textures and colors. Bronze gravestones are also worth mentioning here though, as they are also a popular choice. Whatever the choice of material, gravestone memorials need regular tending in order to maximize their durability and to keep inscriptions as legible as possible. It is also a nice way to show that you are still thinking about the person who has passed away.…

HARDNESS Hardness of a material is most commonly defined as the measure of its resistance to penentration by an indenter.Hardness is also measure of strength and often has the units of stress .The indenter is often fabricated from a hard material such as diamond or hardened steel.The tips of the indenters may be conical,pyramidal,or spherical in shape.The indenter tips may also be relatively small(nano-or micro-indenters) or very large(macroindenters).Since indentation tests are relatively easy…

typical of measured band gap bowing for ternary alloys AlGaN and InGaN is shown by the solid line track[21]. 1.4. Unique Material properties of Gallium Nitride: The unique material properties of GaN engraves it as an prominent semiconductor material for many electronic and optoelectronic devices[18]. • The wide and direct energy band gap sorts GaN as an appropriate materials for device fabrication in the field of optoelectronics emitters (LEDs and diodes lasers) and detectors. • Moreover the…

Abstract Thermo-mechanic treatment consists in utilization of two classic technological proceedings. This type of treatment was applied to the studied high-speed steel (HS2-9-1-8). The made tests wanted to establish the influence on the hardness and wear of the high-temperature thermo-mechanical treatment (HTTMT) applied to studied steel. The application of an additional plastic deformation (the deformation degree between 45 – 75%) influences positive the hardness and wear value. Being a HTTMT,…

Abstract: The study investigated the workability, and compressive strength properties of the concrete produced by replac-ing 5%, 10% and 15% by weight of ordinary Portland cement with Sawdust Ash (SDA). Slump test was carried out on the fresh concrete and compressive strength test on hardened concrete. The concrete cubes were tested at the ages of 3, 7, 14 & 28 days. The results showed that Sawdust Ash is good with use in cement. The slump decreased as the Sawdust Ash content increased…

These layers when assembled deliver an exceptionally solid and strong wood material known as plywood. The sorts of cement used to stick the thin sheets of wood together is a main consideration in making quality bits of plywood. At the point when a solid and enduring cement is utilized, plywoods turn out to be greatly improved than plain woods in opposing breaks, contracting, curves and twists. Plywood has been a vital material in making houses and different developments. It has qualities…

affected under various circumstances. The strength of materials and how different properties affect it can change the circumstances they are put under. Tensile strength is the resistance of a material put under stress. It is different than compression or shear strength because of the direction of the force that the material undergoes. A material's ultimate tensile strength is different because it is the point of breaking of a material under a certain amount of stress. Contributing factors…

Koutsomichalis et al (2008) discussed that having high hardness and good adhesion with the substrate the sprayed coating exhibited satisfactory wear resistance. Tungsten carbide is an advanced ceramic material combining a unique set of properties such as high hardness, high melting point, wear resistance, good thermal shock resistance, thermal conductivity and good resistance against oxidation. They can be applied as coatings by thermal spraying processes such as plasma-spraying, high-velocity…

process of constructing your home and need to pick a roofing material? It may be tempting to go with traditional asphalt shingles, but know that slate can be an excellent choice for a home. Slate has many benefits that make it an appealing option to use during new construction. Consider the following 3 benefits. Slate is Durable Many homeowners love slate because the material is fireproof. Slate also has the durability of metal roof material since it is capable of withstanding various…

3.3.3 Selection of Die Angles The split die was designed for the ease of assembly for fabrication. AISI 52100 steel was selected as the material for the die fabrication. The entry part of the die is 12 mm and has 120 mm length. The profile of the die is also shown in the solid works software. The angle of the die is 90 is maintained, the slope radius is 20 mm. the Figure.3.1 & Figure. 3.2. illustrate the split die design and solid works model of the split die. Figure. 3.1 : Split die…