High Temperature Hexagonal 99bn Boron Nitride Crucible for Gold Melting

• Certification: CCC
• Shape: Round
• Color: White
• Refractoriness: 1770< Refractoriness< 2000
• Type: Ceramic Parts
• Vickers Hardness: Moh′s=2
• Model NO.: BN Crucible
• Volume Resistivity: 10^8~10^13
• Compressive Strength: 287
• Processing Service: Moulding
• Density: 2.2-2.3
• Thermal Shock Resistance: -
• Maximum Use Temperature: 2400
• Flexural Strength: 300
• Thermal Conductivity: 35
• Water Absorption: 0
• Transport Package: Carton Packing
• Specification: Customized
• Trademark: INNOVACERA
• Origin: Fujian, China

Product Description

Boron Nitride Crucible

Boron nitride exhibits a hexagonal structure and is sometimes known as white graphite, due to its lubricity, anisotropic properties, heat resistance, and high thermal conductivity. This latter property, combined with a low thermal expansion, leads to excellent resistance to thermal shock. All three forms, hot pressed, pyrolytic and hot isostatic pressed, can be used at very high-temperatures. However, in an oxidizing atmosphere the maximum use temperature is 850-900°C. Hot pressed and hot isostatic pressed boron nitride are produced by densification of powder, whereas pyrolytic boron nitride is produced by chemical vapor deposition (CVD), depositing onto graphite at temperatures in excess of 1800°C. The use temperature of boron nitride ceramic crucible in vacuum is 1800 degrees, and the use temperature under atmosphere protection is 2100 degrees. Nitrogen or argon atmosphere is the best and has the longest life. The boron nitride crucible is resistant to thermal shock, and will not crack when it is rapidly cooled at 1500 degrees. It will not crack if it is taken out of the furnace at 1000 degrees for 20 minutes and blow and quenched for hundreds of times.

Precautions for use: 1The use temperature in the air should not exceed 1000 degrees, and the surface of boron nitride in contact with oxygen will peel off if it exceeds 1000 degrees. 2Boron nitride is easy to absorb moisture. The crucible cannot be stored in wet areas and cannot be washed with water. It can be directly wiped off with sandpaper or scrubbed with alcohol. 3Application direction of boron nitride crucible

Available materials: 1. Ferrous metals: iron, copper, aluminum, nickel, magnesium, bismuth, zinc, etc., alloys FE-CO-NI-SI CO-ZR-NB 2. It does not react with water or acid at room temperature. Boil with water and slowly hydrolyze to generate boric acid and ammonia 3. Rare earth, nitride

INNOVACERA supply all shapes of ceramic crucibles, welcome inquiry.

 

Boron Nitride Property:

 

BN99	CABN	ALBN	ZSBN	ZABN	SBN
Compositions	BN>98.5%	BN>97.5%	AlN+BN	ZrO2+BN	ZrO2+AlN+BN
Binder	B2O3	CaB2O3	AlBO3	B2O3	AlBO3
Density(g/cm3)	1.95~2.0	2.0~2.1	2.6	2.9~3.0	3.2~3.3
25 Volume Resistivity(Ω·cm)	>1014	>1013	>1014	>1012	>1012
Max. Service Temp. ()
Oxygen	900	900	900	1000	900
Inert Gas	2400	2400	2100	1800	1800
High Vacuum	2200	2200	1900	1800	1800
Three-point	30	70	130	120	130
Flexural Strength(Mpa)
Compressive Strength(Mpa)	100	100	250	280	300
Coefficient of Thermal Expansion	1.5	2	4.5	5	5
25~1000(10-6/K)
Thermal Conductivity(W/mK)	15	20	50	20	40

ABOUT INNOVACERA

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INNOVACERA is a professional high-tech enterprise, cooperate with Chinese University in advanced materials, many products are awarded as high-tech products and obtain patents.

 

Xiamen INNOVACERA engages in R&D, manufacturing and selling the products of advanced ceramic materials, including Alumina, Zirconia, Boron Nitride, Silicon Nitride, Machinable Glass Ceramic and other advanced materials. Through different manufacturing processes, we supply metallized ceramic components, alumina heater, ceramic pump components and other ceramic components as request.

INNOVACERA engages in R&D, manufacturing and selling the products of advanced ceramic materials, including Alumina, Zirconia,Boron Nitride, Silicon Nitride, Machinable Glass Ceramic and other advanced materials. Through different manufacturing processes,we supply metallized ceramic components, alumina heater, ceramic pump components and other ceramic components as request. Ourproducts are mainly used in Aerospace, Research, Food Processing, Fluid Handling, Scientific, Automotive, Thermal Processing, Electronic and Electrical, Process Control, Textile, Pulp and Paper, Mechanical, Glass Processing, Mineral Processing and other Industrial. INNOVACERA is a professional high-tech enterprise, cooperate with Chinese University in advanced materials,many products are awarded as high-tech products and obtain patents. Our aim is to offer the ideal advanced material solution for any application.
 

EXHIBITION

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>>> Our Products are Alumina Ceramic, Zirconia Ceramic, Boron Nitride Ceramic,Porous Ceramic, Silicon Nitride Ceramic, Machinable Glass Ceramic, Beryllia Ceramic, Aluminum Nitride, Metallized Ceramic Components, Alumina Ceramic Heater, Ceramic Metering Pump And so on.

>>> Our aim is to offer ideal advanced material solution for any application.
>>> We delivery the order on time, competitive price, high quality and long service to our customers.

 

FAQ

 

Q1. Do you offer samples?
A: Yes, we'll offer you samples if we have stock, but some will charge sample fee. Shipping cost will pay by customer.

Q2. What is your terms of payment?
A: T/T in advance, Western Union, Alipay, Paypal.

Q3. How about your delivery time?
A: Depends on the requirement of the producst, according to the materials, dimensions and the manufacture process.

Q4. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery

Q5: What else products do you offer?
A: We provide the products of advanced ceramic materials, including Alumina, Zirconia, Boron Nitride, Silicon Nitride, Machinable Glass Ceramic and other advanced materials.

 

 

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