Exhibition
Long Term Grain Storage: How Long Can Grains Be Stored? (Wheat, Corn & Quinoa)
Whether you grow your grains or buy them in bulk, the correct long term grain …
Customized machining silicon nitride si3n4 ceramic blocks for machine
Product Description
Si3n4 ceramics
abrasion resistance and chemical resistance, high thermal conductivity and low thermal expansion coefficient,
which make it have good thermal shock resistance and stable performance. Due to these good
comprehensive properties and relatively low density, silicon nitride materials can meet the highest quality
requirements in applications. Typical applications include:
High-grade refractory crucible
Bearings and wire drawing dies
Welding nozzle and positioning pin
Cutting tools
Thermocouple protective sleeve
High-grade refractory crucible
Bearings and wire drawing dies
Welding nozzle and positioning pin
Cutting tools
Thermocouple protective sleeve
Item | Unit | Value |
Density | g/cm3 | 3.2 |
Bending strength | MPa | 750 |
Compressive strength | MPa | 3,800 |
Elastic Modulus | GPa | 290 |
Fracture toughness | MPam1/2 | 6.7 |
Weber coefficient | M | 15 |
Vickers hardness | HV0.5 | 1,700 |
Linear expansion coefficient | 10-6K-1 | 2.8 |
Thermal conductivity | W/mK | 20 |
Resistance to thermal shock (water cooling) | TC | 750 |
Maximum use temperature | C | 1,300 |
Volume resistance, 20 ℃ | Ωcm | >1014 |
Dielectric strength | V/m | 10×106 |
corrosion. For example, boiled hydrochloric acid, concentrated nitric acid, aqua regia, sulfuric acid, sulfuric
acid and aluminum hydroxide solution with a concentration below 25%. The silicon nitride cannot be corroded,
the dense silicon nitride has good oxidation resistance, and can still be used stably in an oxidizing
atmosphere below 1400 ° C. The silicon nitride material also has good stability to metal melts and is not
wetted, such as molten metals zinc, gold, silver, aluminum, cadmium, indium, lead, bismuth,
gallium, germanium, etc. and their alloys such as yellow Copper, hard aluminum, nickel silver, etc. all have
gallium, germanium, etc. and their alloys such as yellow Copper, hard aluminum, nickel silver, etc. all have
good corrosion resistance.
Recommend Products
Company Profile
Products Description
Certifications
Way of shipping
Our Advantages
FAQ
Q1: How can know your quality?
We can send you samples or sample material for you to check or test.Let our physical samples speak loudly.
Q2:Are these samples free of charge?
Some standard small samples are free.If same as your requirements,we will just charge for mould to support.
Q3:If products are not to requirement,how can you do?
We will try our every best to solove it.Meeting your requirement is our mission.
Q4:What's the lead time?
Normally,for standard items,will ship within 1-10 days.For mass production order,we will finish within 30 working days after we
receive payment.
Q5:Payment terms:
We can negotiate.
We can send you samples or sample material for you to check or test.Let our physical samples speak loudly.
Q2:Are these samples free of charge?
Some standard small samples are free.If same as your requirements,we will just charge for mould to support.
Q3:If products are not to requirement,how can you do?
We will try our every best to solove it.Meeting your requirement is our mission.
Q4:What's the lead time?
Normally,for standard items,will ship within 1-10 days.For mass production order,we will finish within 30 working days after we
receive payment.
Q5:Payment terms:
We can negotiate.