ABSTRACT The main purpose of this project is to Analyze Road Traffic Accident (RTA) data in Nigeria, taking Anambra State as a Case of Study and to find out the major causes of such accident and suggest strategies for preventing or controlling them for the benefit of road users. An Analysis of Accident data recorded between the years 2004 – 2008 has yielded the following facts: over speeding and faulty tires are the causal factors of road accidents. These are but the majo...
Abstract Physical Separation process refers to all the mineral separation techniques that are based on exploiting the differences in specific physical properties of the mineral such as specific gravity, magnetic properties, thermal and electrical conductivity. Physical separation techniques are usually preferred for economic reasons. Physical separation techniques include; •Gravity separation process •Classifiers •Magnetic separation process •Electrical separation process •Separati...
Scope of Presentation 1. Definition of light metals/alloys. 2. Examples of light metals. 3. Characteristics/properties of light metals. 4. Trends in production and applications of light alloys. 5. Production of light metals
The drive behind this research work cannot be far-fetched from the quest to precisely predict how effectively welded low carbon steel pipes will function in industrial service applications requiring subjecting them to service use at elevated temperature as a function of inferences drawn from a critical study of the corrosion behavior of these welded steel pipes in both acidic and salty environment. To this end, a particular low carbon steel pipe of known chemical composition was sectioned int...
This research investigated the corrosion behaviour of selected steels (low carbon, medium carbon and high carbon steels) in 3.5 molar sodium chloride (NaCl) solution. The selected steels were cut into smaller sizes, after which they were heat treated and immersed in the corrosive media (3.5M NaCl solution) for corrosion test investigation. The immersion test was setup for 60 days for the comparative study of the behaviour of the selected steels in the corrosive media. Metallography of the ste...
ABSTRACTAccording to a few recent studies, calcium titanate is a material that is similar to hydroxyapatite in biological properties. However, calcium titanate is not currently being used in the biomedical application as to hydroxyapatite. The objective is to prepare nano calcium titanate powder from the solution of calcium oxide, ethanol, and titanium (IV) isopropoxide via sol-gel synthesis. The fiber size, pore size and morphology were studied by phenom scanning electron microscope (SEM). T...
ABSTRACTThe effect of Heat treatment on the Mechanical Properties of a welded joint of medium carbon steel has been carried out. The materials were cut, welded, to get 27 samples needed. Thereafter, Heat Treatment was carried out on the samples. Then the specimens were grouped into two groups, group A and group B. In group A, after the heat treatment on the welded specimens, one sample was quenched in water immediately, another was oil-quenched and the third one was allowed to cool unde...
ABSTRACT Attempt was made to produce wood pellets from sawdust using locally sourced binders as an alternative binder, to wood lignin which is a natural binding agent. Wood pellets were produced by manual moulding with starch concentration of cassava and potato starch as the process variable. Results show similar behavior between pellets bonded by cassava, and potato starch, But differs slightly in the case of calorific value and smoke analysis, it shows that smouldering produce the highes...
HISTORY Refractories have been used by humankind since earliest history. When humans first began to smelt metals and shape primitive knives, hunting weapons, and ornamental rings and jewelry, crude refractory materials were developed to facilitate the pyroprocessing of the ores. As refractory practice developed, materials evolved which were ever more durable, lasting longer and longer before replacement was necessary. DEFINITIONRefractory materials are materials, which have the capaci...