All You Need to Know About Boron Nitride Ceramics

What is Boron Nitride (BN)?

First of all, boron nitride is not poisonous or is a nontoxic waste so it is not harmful to the environment. It is thermal in nature, which means it has the ability to transfer or conduct heat that makes a material cool down.
Combined with chemical content, it is a refractory compound or material so it does not decompose when subjected to any pressure or heat; instead, it remains strong and steady despite exposure to high temperatures or electrical compounds.
When it comes to its color and form, BN is usually converted to powder but it can also be crystallized form. It is white colored in powder and transparent in crystal form.
Although BN is synthetic, it is considered an advanced ceramic material. It is known as white graphene to many mainly due to its hexagonal appearance in crystal form though it is highly resistant to oxidation.
Overall, BN is highly resistant to heat and electricity, easy to process, lubricious, and helps in minimizing power loss.

What does its structure look like?

In terms of structure, it takes 3 forms: hexagonal boron nitride or HBN (stable at exposure to normal temperature as well as pressure), cubic boron nitride (CBN) and wurtzitic boron nitride (WBN) (both become synthetics when exposed to high temperature as well as pressure).

When it comes to softness, HBN is the softest of them all and is also the most stable when exposed to high temperature and pressure so it is highly recommended to be added onto beauty products and is even utilized as a lubricant.
CBN, on the other hand, is described as hard in nature next to diamond. Since it is insoluble, it is often utilized as an abrasive compound and a coat to metals since it is highly resistant to oxidation.
The third BN, WBN, is likened to lonsdaleite and is harder than cubic boron nitride.
What industries use BN?

Because of its great thermal conductivity, chemical stability, low COF (coefficient of friction), awesome dielectric constant and more, BN both in its powder and crystal form is used in different industries including aerospace, gas, electronics, oil, cosmetics and beauty, and manufacture of ceramics. Aside from this, BN is also utilized in the process of manipulating compounds on atomic scale in order to create new components or materials.

HBN is a material in producing BN crucibles.
CBN is used in heat spreaders.
WBN is utilized in electronic and optical devices.
The list of available BN products include BN crucible, BN evaporation boat, BN nozzle, as well as custom BN ceramic.

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What Is Die Casting?

Since the 19th century, the field of die casting has made a lot of progress. In this article, we are going to talk about the basics and different materials and processes of die casting. According to experts, if you want to create processes, this field is your most economical choice. With just one mold, you can produce thousands of castings. Moreover, the quality of the components will be the same and the cost will be very low. Let’s find out more.

Definition

Basically, this automated casting process involves pressing the liquid melt into a mold at extremely high pressure and speed. The pressure is between 150 and 1200 bar, and the speed is as high as 540 km/h. Generally, this process uses alloys with a very low point of melting.

In most cases, this process is an ideal choice for the mass production of a wide range of components. Moreover, this process makes use of permanent molds.

Molds

As for as molds are concerned, they are made of high-quality steel. The two halves create a cavity that holds the liquid melt. These two parts are fixed on a machine plate. High pressure is applied to the mold.

Apart from this, the die is cooled down in order to give the desired shape to the melt. It takes a lot of money and time to produce the mold. But the good news is that you can make millions of castings once the mold is ready.

Procedures and functionality

When it comes to die casting, components are manufactured using two different methods: cold chamber and hot chamber die casting. Regardless of the manufacturing process, a special release agent is prepared before the casting process. This is to make sure that the cast part is removed without any problem.

However, they don’t put the melt directly into the cavity. Instead, it is put into the casting chamber and then the alloy is forced into the mold using a strong piston.

Hot Chamber Method

One of the primary features of this process is that the chamber is in touch with the alloy. Apart from this, the melt goes through a valve where it faces extreme pressure. As a result, it goes into the close die. Generally, this process is ideal for alloys that feature a low point of melting.

Cold Chamber Method

In these units, the casting set is fixed outside the melt. For making components, this process fills the casting chamber with the alloy. Afterward, it is pressed into the molded wire in different channels. Generally, materials that feature a high melting point can use this process.

Long story short, this was an introduction to the die casting process. Hopefully, this article will help you get a basic understanding of this process. If you want to start a business in this field, we suggest that you consult an expert.