INNOVACERA | technical ceramic solutions

  Metallurgical equipment operates under extreme duress—scorching temperatures, corrosive molten metals, and severe abrasion. Traditional materials like graphite and alumina often fail prematurely due to corrosion, sticking, or cracking. Boron nitride ceramics , however, offer a transformative alternative, combining chemical inertness, exceptional thermal stability (up to 2200 ° C), and inherent solid-state lubricity to solve the industry’s most persistent challenges. Here is the tradition application for Metallurgy.   1. Continuous Casting – Separator Rings and Side Dams One of the most critical applications is in continuous casting. In horizontal continuous casting, the separator ring connects the tundish to the mould and acts as the solidification starting point for molten steel, which must endure 1480–1560  ° C and severe thermal cycling. BN‑based composites (e.g., Si₃N₄‑BN) offer outstanding thermal shock resistance, corrosion resistance against steel, and complete non‑we...

This article mainly describes the advantages and applications of different materials crucible. 1. Tungsten boat: · High temperature resistance: Tungsten boat has excellent high temperature resistance and can withstand the vacuum evaporation process at high temperature. · Thermal conductivity: Tungsten has good thermal conductivity and can provide uniform heating, which helps to obtain uniform film deposition. Stability: tungsten is relatively stable at high temperature, not easy to oxidize, suitable for evaporation under high temperature conditions.     2. Boron nitride crucible: · Adhesion resistance: boron nitride crucible has good adhesion resistance, which can reduce material residue and pollution. · Electrical conductivity:  boron nitride(BN)  crucibles usually have low electrical conductivity, which is helpful for certain processes where electronic conduction needs to be controlled. · Chemical inertia: boron nitride crucible is relatively inert in many chemical...

  1. Protective Materials During the steel smelting process, it can be used as a protective material to protect metal materials. For example, in the continuous casting process,  Boron Nitride (BN)  can be used as a protective slag to effectively prevent slag inclusion defects in castings and reduce the wear of the tundish and crystallizer. In addition, BN can also be used as a filter material for molten metal to filter out impurities and gases in the metal and improve its quality and purity.   2. Thermal materials Due to its high thermal conductivity and good thermal stability, this material can be used as a thermal material in the metallurgical industry.   For example, in the steel smelting process, BN can be used as the main material for high-temperature equipment such as crucibles and thermocouple sleeves and has good high-temperature oxidation resistance and high-temperature strength.   In addition, it can also be used as a lining material for high...

The working temperature of the  boron nitride ceramic crucible  is 1900°C under vacuum and 2100°C under atmosphere protection. Nitrogen or argon atmospheres are best, it makes have the longest life. The  boron nitride crucible  has strong thermal shock resistance, 1500°C fast cooling without cracking, and 1000°C furnace holding for 20 minutes, taking it out and blowing and fast cooling for hundreds of times continuously without cracking. Note: 1. The use temperature in the air should not be more than 900 °C, and the surface of boron nitride and oxygen will be oxidized and peeled if it exceeds 900 °C. 2.   Boron nitride   is easy to absorb moisture. The crucible can’t be stored in wet areas and can’t be washed with water. It can be directly wiped with sandpaper or scrubbed with alcohol. 3. Application direction of boron nitride crucible 【Available materials】: Ferrous metals: iron, copper, aluminum, nickel, magnesium, bismuth, zinc, etc., alloy FE-CO-NI-SI CO...

  Boron nitride   is an excellent self-lubricating ceramic that can withstand high temperatures and maintain its lubrication capabilities in high vacuum environments. Usually composed of hexagonal boron nitride (P-BN), it has good heat resistance, thermal stability, thermal conductivity, high temperature dielectric strength, and is an ideal heat dissipation material and high temperature insulation material. Due to its high thermal and chemical stability,  boron nitride crucibles  are used in high temperature applications. They are also used in metal casting because it bonds well to metals, as a sandwich of metal borides or nitrides is formed. The benefits of using a boron nitride crucible are its low wettability to molten metal, relatively high resistance to thermal shock, and conductivity with low thermal expansion. Another advantage of boron nitride crucibles is their very high operating temperatures and appropriate inert gas protection (temperatures above 3000°C h...

Hexagonal Boron Nitride has a microstructure similar to that of Graphite. In both materials this structure, made up of layers of tiny platelets, is responsible for excellent machinability and low-friction properties. we called hexagonal boron nitride (HBN) or white graphite. Material of Boron Nitride Ceramics: Pyrolytic Boron Nitride: 99.99% Boron Nitride 99 Boron Nitride: Boron Nitride + Boric Oxide (B2O3) CABN: Boron Nitride + Calcium Borate ALBN: Boron Nitride + Al2BO3 ZRBN: Boron Nitride + Zirconium Oxide + Boric Oxide (B2O3) ZABN: Boron Nitride + Zirconium Oxide + Aluminum Nitride + Al2BO3 SCBN: Boron Nitride + Silicon Carbon + Al2BO3 Applications of Boron Nitrides Ceramics: Thermal Management Excellent electrical insulation and thermal conductivity make BN very useful as a heat sink in high-power electronic applications. Its properties compare favorably with beryllium oxide, aluminum oxide, and other electronic packaging materials...

Source: https://www.innovacera.com/news/silence-friend-of-laboratory.html Our customers come from all walks of life, and a large part of them come from laboratories in universities or research centres. For these researchers, our most suitable and standard product is ceramic crucible. This word may be new to the general public. Still, crucibles are good friends of the lab and a loyal helper of researchers to do experiments. Clays originally made crucibles, and one of the earliest uses of platinum was also making crucibles. However, with the development of preparation technology, crucibles can now be composed of any material that can melt or change its contents. Image by Skieze from Pixabay What is a crucible? Crucibles are vessels made of extremely refractory materials such as clay, graphite, porcelain... Its role is to melt and refine metallic liquids, and also as a solid-liquid heating and reaction vessel. Crucibles belong to chemical instruments. When we heat solid by fire, we must ...