Boron carbonide ceramic is an essential component of new ceramics. With a high melting and hardness level, low density, wear resistance and corrosion resistance, it’s a key part. It is extensively used in the fields of nuclear energy, bulletproof protection, and wear-resistant material.
Current research is expanding in depth and breadth on -boron carbide ceramics. Researchers are working to improve the practicality of sintering technology.
Ceramics boron carbide properties
Boron cadmium ceramics Are very hard. It is microhard at 50000mpa or 50gpa. This puts it right next to CBN (80-90gpa) & diamond (90-100gpa). It can attain 60%-70% of a natural diamond’s grinding efficiency, which is about 1-2 times that SiC and 1-2x corundums. The material is very thermally stable due to its high acid-base resistance (4.5×10-6), as well as its small coefficient for thermal expansion (4.5×10-6). The ability to absorb thermal neutron qualitatively is possible, however it does not have a strong impact on resistance or high brittleness.
Boron carbide can withstand atmospheric corrosion at 1000°C. But, at higher temperatures it will oxidize easily in an oxidation environment at higher temperature. Boron carbonide exhibits a strong resistance to acidity and alkali.
Preparation Brio carbide ceramics
Boron sulfide ceramics might be achieved by different means. It is usually used for dense B4C.
B4C produced by hot pressing sintering is capable of reaching 98% density. It is possible to prepare it in a conventional fiery or vacuum pressing furnace. The temperature at which the press is heated is 2100.
A weak resistance to thermal shock caused by B4C means that cooling must be gradual. You should keep the hot pressing temperature at an acceptable level. At 2150, the B4C eutectic liquid phases will begin to appear. However, too low temperatures can cause product densities to drop. You can obtain Boron carbide-ceramic products of high density and hardness by using the B4C superfine powder.
It is possible to do hot pressing without sintering. These requirements are high for pressureless, sintering carbide powder at a very low temperature. For the pressureless densification pure boron carbonide, ultrafine powder (3um) is required. It is possible to sinter at temperatures between 2250-2350
It is possible to use additives to make pressureless intersintering more efficient. These additives can be used to dissolve the oxide layer ofboron carbide, increase grain diffusion and activate the grain boundary. It was found that Al or Si, when used as sintering materials, sintered at 2050, atmospheric pressure, for 180min, had a relative density greater than 93%. Also, there is 298mpa strength in the boron caride ceramics , while the boron carbonide ceramics contain Al. There are 344mpa strength in the si,
Hot isostatic and discharge plasma are two other options for boron carbonide ceramics. However, these methods will not here be explained. But hot pressing is one of the most common methods to create pure boron caride ceramics.
Application to boron carbonide ceramics
1. An armor field that is bulletproof
B4C is the ideal material to make a helmet, bulletproof vest or armor. Its lightweight and extremely high hardness makes it a great choice.
embeddable boron carbide jars currently are used extensively in ceramic armor materials. B4C Ceramics are more lightweight and difficult to handle than bulletproof materials. It’s ideal for arming helicopters or other aircraft with bulletproof armor materials. This material can resist the shells. Boron Caride Ceramics are used in bulletproof clothing to protect the US military.
2. Wear-resistant technology
Different nozzles of B4C high hardness can be found in engineering and wear-resistant technologies. Boron carbonide is used for polishing and fine grinding. It can also be used as an abrasive material to other hard materials, like engineering ceramics or cemented caride.
3. Thermoelectric couple
Based on B4C’s thermoelectricity, two temperature differential couples capable of measuring 2220 were prepared using sintering. You can use it repeatedly because of its thermal electricity and stability.
Boron carbonide ceramics, which have many wonderful properties, is very significant and widely used. Future plans will see it grow.
Cataniadagiocare advancedmaterial Tech Co., Ltd., (Cataniadagiocare), has more 12 years of combined experience in chemical product development and research. You can contact us to request high qualityBoron Cartide B4C Pulver.