Iron

The Mt. Isa Mine is a deposit of copper, lead and zinc. It is located at latitude 20∘44’S, longitude 139∘29’E and is in Queensland (Forrestal, 1990). Generally, this ore deposit contained 123 g/t copper, 5.0% lead and 7.0% zinc at 4.8 Mt. The host rock of this deposit consists of pyritic shale, carbonaceous shale, dolomitic siltstone, carbonate, granite, ironstone and metasedimentary cover rocks (Hutton et al. 2012). Deposit genesis The ore deposit genesis is considered to have occurred in…

Carports are like the garage spaces you have in your houses. It functions the same way in giving protection to your cars. The only difference is that carports are not fixated. Instead, it is a portable and retractable device you can bring with you in your outdoor trips. The best carports for this generation are the ones made of metal, usually of aluminum or steel. There are also that has core panels made of insulated polystyrene foam. This is also wrapped with steel or aluminum. Most metal…

Copper is one of the oldest metals known to man. Copper dating back to ancient time was discovered in Iraq. According to webelements.com, origin of name is from the Latin word "Cuprum" meaning the island of "Cyprus". Copper symbol is Cu. Copper atomic number is 29 and atomic mass of 63.546 amu. Copper is located in the 11th group on the periodic table. Copper is a transition metal, meaning metals that can be stretched into thin forms, such as wire (this characteristic is called "ductility"), and…

One of the earliest metals to be discovered, lead has a long history with mankind. It was first discovered around 7000 BC as a byproduct of silver smelting. Lead is metal known for its resistance against corrosion, malleability, and low melting point. Mined all across the world, lead was one of the most important metals in ancient times. Although lead was toxic, it was used widely, particularly in the Roman Empire. Through its uses and toxicity, lead affected the classical era in a drastic way.…

Aluminum is used in many of our household items. From pie pans to pop cans, Aluminum is a very common product. Charles M. Hall is an American Chemist who figured out how to produce aluminum using his electrolytic method. This method allowed aluminum to be mass produced. Hall was born on December 6th, 1863 in Thompson, Ohio. His father was a missionary and minister who was very educated. Education played a big part in his childhood. He read numerous science magazines and articles as a child. He…

Study of Stress Corrosion Cracking (SCC) in Alloys Jiang Jingxing 1. Introduction of Stress Corrosion Cracking Stress Corrosion Cracking (SCC) is the growth of cracks with a under the combined effects of a static stress and a specific chemical environment. All SCC failures involve a macroscopic brittle performance, and the ductility of the material is reduced. It is universally acknowledged that there is no single mechanism for stress corrosion cracking (Ford, 1984). Stress…

To counter the adverse effects of emergency room overcrowding, the author of this paper proposes the implementation of a fast-track program. FTAs are designed to handle urgent conditions that can be treated quickly. Patients that are classified as non-urgent (ESI levels 4 or 5) are seen in a designated area within the emergency department. One could describe the FTA as an express lane to treat those with less serious illnesses or injuries. A study performed in Turkey showed that FTAs lessen…

5. CREATIVE PHASE Table IV Functional Development to Cost (An Incline) Function Creative Ideas & Development Estimated Cost (Rs) Provide Surface 1) Change the material to Mild Steel 40 2) Change the copper to brass 70 3) Combine function of bracket 85 (For sliding surfaces, copper facilitates lu-brication & high con-ductivity.) (A) The existing cost of the Incline + Bracket assembly = 112…

Properties of cold formed steel In general, cold formed steel has many important properties which make it significant building material, the main two properties of cold formed steel are: the yield point and the tensile strength and how are they related to formability of steel, most members in building industry are on high tensile loads, cold formed steel has a Huge tensile strength, however the ratio between the tensile strength and the yield strength is 1.2-1.8 .in addition to other good…

Find out what you need to know about welding safety to get the job done One of the most significant dangers while welding is exposure to arc rays, known as arc flash. Arc flash is a burn off the outer layer of the eye. It’s because of intense exposure to UV radiation from electric welding arcs. It’s mainly like a sunburn, most useful in your eye. There are some approaches to protect yourself from arc flash. You’ll want the right defensive eyewear, which includes protection glasses and a…