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Showing posts from August, 2017

Review on Age Hardening of Aluminium Alloys for Industrial Applications

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Hey, Guys! In this blog, I'll be talking about my one of the favorite topics related to metallurgy "Age Hardening"   Aluminum Alloys are extensively used in the world with their most important use in vehicle, aerospace and defense sector because of their lightweight and exceptional strength due to Age Hardening effect, but their use and strengthening process is still very out of specific and other heat treatment processes, new discoveries and new Al alloys are much neglected industrially and on a research-level. Aluminum is a soft metal with a tensile strength of 8-11 MPa but its alloys have a strength of 200-400 MPa. Aluminum Alloys are extensively used industrially after Steel because of their extreme shear and tensile strength. The main reason behind this spectacular increase in strength of Al Alloys is because of Age Hardening effect. Age hardening effect was discovered in 1906 by Alfred William and its correct explanation and procedure were proposed by Merica, Walte

Science Guys Episode-1: Neil Degrasse Tyson

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Neil Degrasse Tyson “The good thing about science is that it's true whether or not you believe in it.” Astrophysics is a branch of astronomical sciences which employs the concepts of physics and chemistry to make sure of the nature of heavenly bodies. This branch of science may seem a little boring, time-consuming, even for some people it is a waste of time but some people study this field, spend their lives exploring the universe. Then there comes a guy who is an actor, writer, a TV show host and an Astrophysicist “Neil Degrasse Tyson”. He is a great science communicator, most of his published books are best sellers. Yes, he is a scientist yet he is one of the most influential people on Earth. This guy instead of being popular for some scientific achievement is popular for his ability to popularize science. He is a philosopher and not an ordinary philosopher but he makes people love Astronomy and make people love science and accept it. “Welcome to the Universe: An Astro

Self-Cleaning Materials: A Nano-Technology Wonder

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Have you ever wondered how these paints, glass windows, and fabric companies claim that their material is self-cleaning and lasts for years? Maybe yes or maybe no. Such upgrades in these everyday use items are due to the “Self-Cleaning Technology” a wonder of Nano-Technology (Manipulation of atoms and molecules at a nanoscale). Nanotechnology has been a hot topic for researchers in materials engineering, electrical engineering, physics, and much more on for a couple of decades now. This technology is doing wonders and maybe is going to change this world in the coming time. In addition, the speed with which this technology is growing and giving breakthroughs every day maybe our generation or the next generation will be able to witness the “Future”. Lotus Leaf: The incredible property of Lotus leaf (on the left) is self-cleaning is the basis of self-cleaning. The microstructure (on the right) represents the grooves on the leaf which is the reason behind this property. Self-Cleanin

Gravitational Waves: A Hundred Years Struggle

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Last year, on February 11 the team of LIGO (Laser Interferometer Gravitational Wave-Observatory) the USA gave humanity a great discovery which gave scientists a portal to investigate this huge universe in a totally different way (Cofield, 2016). This was the day when the LIGO team announced the discovery of “Gravitational Waves” and we must say a great tribute to 100 years of General Relativity. These waves formed when two black holes circulated each other and finally collided. The reason why this was a huge discovery is it changed science, it nullified some very old concepts and proved some new. Although the possibility of gravitational waves was discussed by Oliver Heaviside in 1893 since gravity and electricity obeys inverse square law (O, 1893), Henri PoincarĂ© in 1905 also proposed the concept of gravitational waves using Lorentz Transformation (Poincare, 1905), but it was properly described by Einstein in 1916 based on his theory of General Relativity. Since then scientists have