Materials handler Essay

Materials handler Essay

The Constituent Materials of Concrete

– Portland Cement Association (n.d.) stated that in the simplest form, a blend of paste, stone, sand and water is a concrete. Concrete is one of the fundamental building block of the civilization, contributing to all the structures across the world. Concrete can be viewed in details in term of its constituent materials, properties, durability and concrete mix design and quality control. Constituent materials are the fundamental materials required to produce concrete. The constituent materials of concrete consist of mainly three materials which are cement, aggregate and water, with admixtures included as addictive to alter the characteristics of the concrete (Scalenghe et al., 2011)….  

The Advanced Materials Revolution

– Steel: (for all intents and purposes) was invented in 1855 by Henry Bessemer(Mary Bellis). Science the amazing innovation that has changed the world incredible things have been made from the material from bridged cables and cross beams to arresting wires on aircraft carriers that stop monumental force and speed. It is truly an amazing martial, but eventually it snaps, breaks or tears due to the separation of the molecules. Also steel is not the most flexible material there is which may sound good for what it is used for, construction….  

Alternative Electrode Materials: Batteries

– … The main components of a battery are the electrodes, and the materials used for these electrodes have the greatest impact on the performance of the battery. Therefore, the essential question is: which materials used in the electrodes will yield to the most battery life. The history behind the creation of the lithium-ion battery is as follows. Schalkwijk (2002) provides the reason behind why lithium was the chosen material for the battery, “(i) Lithium has the lightest weight, (ii) It has the highest voltage and (iii) it has the greatest density of all metals”(p.133)….  

What are Nano Structured Magnetic Materials

– … Under the influence of alternating magnetic field, superparamagnetic ferrite nanoparticles are expected to be useful as thermoseed in hyperthermic cancer treatment as they can be targeted and confined to the cancer site without damaging normal cells [10]. Hence, ‘superparamagnetic nano particles’ is an important research area for their biomedical applications. Specifically, nano ferrites with a crystallite size below 10nm behave as superparamagnetic materials. CoFe2O4 is interesting because of its unique structural, magnetic and electrical properties [11,12]….  

Milestone of Fatigue Behaviour in Composite Materials

– A milestone of fatigue behaviour in composite materials is due thanks to Kenneth Reifsnider [5] whom also deeply studied damage development [6]. The phenomenon cannot be described easily as in metals because of the complexity of the internal microstructure. The most important consequence of this complexity lies in the loss of a well-defined damage state, which cannot be considered like a single crack in homogeneous materials. Reifsnider in his introduction highlights the difficulty to define the damage condition in composite….