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Alumina fibers offer lower heat conductivity, thermal shrinkage, or heat capacity. The temperature at which it can be used for long periods is 1300 1400°C. It is more than aluminum silicate (1000 11100°C). It can be used in acidic environments as well, oxygenizing atmospheres, reducing atmospheres, vacuum, and other oxidizing and reducing atmospheric conditions. While …
Silicon carbide (SiC), which is made from quartz, petroleum coke and wood chips by high temperature smelting within a resistance oven, is also called quartz sand. While silicon carbide can also be found naturally, it is extremely rare. Moissanite contains silicon carbide as its main ingredient. This non-oxide, high tech refractory material is more widely …
3D printing technology is rapidly changing traditional manufacturing processes and our daily lives. An example of emerging manufacturing technology, metal 3D printing technology’s early applications in aerospace have turned to medical, engineering, education, and jewelry markets. Is there anything you don’t know about metal printing technology? Today Dr. TrunnanoLeo will share the current mainstream metal …
Carbon is an element that pervades nature. Graphene as well as carbon nanotubes, are examples of allotropes. These elements have many details that are important for us to comprehend and apply. Let us now take a look at this article. Introduction of graphene Graphene is an example of a carbon nanomaterial in two dimensions. It’s …
Agglomeration and distribution of nanoparticles One can classify the agglomeration nanoparticles in two ways: soft or hard. Most of the soft agglomeration occurs due to electrostatic interactions between particles, as well as van der Waals forces. The weak force allows soft agglomeration to pass certain chemical tests. Use of mechanical energy, or the law, to …
Bismuth oxide overview Bismuth is a yellowish powder that is normal at temperature. However, it turns reddish when heated and then becomes orange. This color will continue to warm to the point where it is still pale yellow upon cooling. Bismuthoxide is insoluble and insoluble under alkali and in water. But, it can be reduced …
A colloidal form of small-sized gold nanoparticles is referred to as the tiny gold particles. It has a diameter from 1 to 100 nm and high electron density. You can make various sizes of colloidal golden nanoparticles by using chloroauric Acid. The colour varies from purple to red depending on what size you choose. This …
2004 brought us the discovery of an entirely new material. It’s composed of two-dimensional hexagonal structures made from carbon atoms. Graphene’s unique electronic band structure as well as relativistic electronics make it the ideal system for two-dimensional electronic communication. Graphene – A new carbon material, graphene has a two-dimensional honeycomb lattice construction. Single layer carbon …
Molybdenum Silicide refers to a specific type of molybdenum compound. As the radii of both atoms don’t differ much, its electronegativity has similar properties to ceramic and metal. It is both electrically and thermally conductive, with a melting point up to 2030°C. A silicon dioxide passivation film can be created on the surface at elevated …
In the multitude of types and uses for micro-powders available, bismuth dioxide powder stands out. The oxide is used in synthesis of many different compounds. This micropowder, with its high purity makes it a great powder for analytical purposes. In industrial processes, the micro-Bi2O3 Powder is used as both a filler or pigment. This powder …