Overview of Silicon Carbide Crucible

Silicon carbide (SiC) crucibles are advanced ceramic vessels known for their exceptional thermal conductivity, high strength, and resistance to thermal shock. These crucibles can withstand extreme temperatures up to 1600°C and are highly resistant to chemical attack, making them ideal for melting metals, alloys, and other materials in both laboratory and industrial settings.

Features of Silicon Carbide Crucible

High Thermal Conductivity: Efficient heat transfer ensures uniform heating and rapid temperature changes.

Thermal Shock Resistance: Can endure rapid temperature fluctuations without damage.

Chemical Inertness: Resistant to most acids and alkalis, minimizing contamination.

Temperature Range: Operates effectively at temperatures up to 1600°C.

Mechanical Strength: Extremely durable and strong, even under harsh conditions.

Non-Reactive: Does not react with the materials being processed, preserving sample purity.

Long Service Life: Durable construction ensures extended use and reliability.

(Isotatic Pressing Sintered Silicon Carbide SiC Crucible)

Specification of Isotatic Pressing Sintered Silicon Carbide SiC Crucible

The isostatic pressing sintered silicon carbide (SiC) crucible is a high-performance ceramic product developed for extreme thermal, mechanical, and chemical settings. Made by means of advanced isostatic pushing and sintering strategies, it guarantees uniform density, structural integrity, and remarkable durability. Below are the key specs:

** Product Structure: ** High-purity silicon carbide (≥ 98.5%) with trace sintering help (e.g., boron, carbon) to improve densification.

** Thickness: ** ≥ 3.10 g/cm ³, making certain reduced porosity and premium resistance to permeation.

** Thermal Features: **.
– Thermal Conductivity: 120– 150 W/m · K (20– 1000 ° C), allowing quick warmth transfer and thermal shock resistance.
– Maximum Operating Temperature Level: 1600 ° C in inert atmospheres; 1400 ° C in oxidizing atmospheres.
– Coefficient of Thermal Development: 4.5 × 10 ⁻⁶/ ° C( 20– 1000 ° C), reducing thermal stress and anxiety.

** Mechanical Qualities: **.
– Compressive Stamina: ≥ 2200 MPa.
– Flexural Toughness: ≥ 350 MPa.
– Hardness: 2500– 2800 HV (Vickers), supplying exceptional wear resistance.

** Chemical Resistance: ** Withstands rust from acids (HCl, HNO ₃, H ₂ SO ₄), alkalis, and molten steels (Al, Cu, Zn). Not suggested for hydrofluoric acid (HF) or solid bases at high temperatures.

** Dimensional Specifications: **.
– Requirement Sizes: 50– 500 mm in diameter, 60– 600 mm in height.
– Wall Thickness: 5– 20 mm (adjustable).
– Ability: 0.1– 50 litres.

** Surface area Finish: ** Smooth inner surface area (Ra ≤ 0.8 μm) to reduce material adhesion and help with easy cleansing.

** Electric Properties: ** Electric resistivity of 10 ²– 10 ³ Ω · cm at room temperature level, ideal for induction home heating applications.

** Applications: ** Ideal for steel melting, semiconductor processing, chemical synthesis, and high-temperature sintering. Compatible with vacuum, inert, and oxidizing atmospheres.

** Certifications: ** Complies with ISO 9001, RoHS, and REACH criteria.

** Personalization: ** Available in round, cone-shaped, or custom-made geometries. Optional features include spouts, handles, or strengthened edges.

The isostatic pressing sintered SiC crucible exceeds typical alumina or graphite crucibles in thermal security, life expectancy, and resistance to thermal cycling. Its mix of high thermal conductivity, mechanical strength, and chemical inertness makes it a premium selection for requiring commercial and laboratory applications.

(Isotatic Pressing Sintered Silicon Carbide SiC Crucible)

Applications of Isotatic Pressing Sintered Silicon Carbide SiC Crucible

Isostatic pressing sintered silicon carbide (SiC) crucibles are innovative ceramic elements engineered for extreme thermal, mechanical, and chemical atmospheres. Their distinct manufacturing procedure– combining isostatic pushing for uniform thickness and high-temperature sintering for enhanced homes– delivers remarkable toughness, thermal shock resistance, and corrosion resistance. These features make them crucial across sectors needing trusted high-performance products.

In metallurgy, SiC crucibles excel in melting and spreading non-ferrous steels like light weight aluminum, copper, and precious metals. Their high thermal conductivity guarantees fast warm transfer, while their resistance to thermal shock protects against cracking throughout quick temperature level modifications. This extends service life in factories and reduces downtime for substitutes.

The semiconductor market counts on these crucibles for high-purity processes such as silicon crystal growth and dopant diffusion. Sintered SiC’s ultra-low contamination risk ensures very little interaction with molten silicon or other semiconductor products, preserving the integrity of wafers and digital elements.

Chemical handling applications leverage SiC’s inertness to acids, alkalis, and molten salts. These crucibles are utilized in manufacturing specialized chemicals, stimulants, and advanced ceramics, where resistance to destructive media and high-temperature stability are vital.

In power storage, sintered SiC crucibles are vital for producing lithium-ion battery products, consisting of cathode forerunners like lithium cobalt oxide. Their ability to withstand extended exposure to hostile chemical atmospheres and high sintering temperatures ensures consistent batch quality.

The solar industry utilizes SiC crucibles for silicon filtration in solar battery manufacturing. Their thermal stability and non-reactivity stop contamination during the manufacturing of high-purity polysilicon, directly improving photovoltaic panel effectiveness.

Aerospace and nuclear fields employ these crucibles for processing high-performance alloys and contaminated products. Their radiation resistance and structural honesty under severe conditions make them suitable for next-generation nuclear reactors and aerospace component construction.

Contrasted to conventional clay-graphite or alumina crucibles, isostatic pushing sintered SiC offers exceptional mechanical strength, longer life-span, and decreased maintenance. Their uniform microstructure removes powerlessness, making certain integrity in continual industrial procedures. By combining sophisticated production with product excellence, SiC crucibles deal with the requiring requirements of modern-day high-tech markets.

Company Introduction

Welcome to Teen-Hot,a leading global supplier of high-quality crucibles designed for various industrial applications. We offer an extensive range of crucibles, including graphite, ceramic, and metal varieties, tailored to meet the needs of foundries, laboratories, and manufacturers. Our products are renowned for their durability, thermal resistance, and precision engineering, ensuring optimal performance in melting and heat treatment processes. With advanced manufacturing facilities and a commitment to excellence, we provide reliable, cost-effective solutions worldwide. Partner with us for your crucible needs and experience superior quality, expert support, and timely delivery.

If you have any questions, please feel free to contact us(nanotrun@yahoo.com).

Payment Methods

T/T, Western Union, Paypal, Credit Card etc.

Shipment Methods

By air, by sea, by express, as customers request.

5 FAQs of Isotatic Pressing Sintered Silicon Carbide SiC Crucible

What is isostatic pressing in the context of sintered silicon carbide crucibles? Isostatic pressing is a manufacturing process where silicon carbide powder is compacted under uniform pressure in a flexible mold using a liquid or gas medium. This ensures even density distribution, eliminating voids and weaknesses. The result is a crucible with superior mechanical strength, thermal stability, and resistance to thermal shock compared to those made via uniaxial pressing or slip casting.

What are the key advantages of sintered SiC crucibles over traditional materials like alumina or graphite? Sintered SiC crucibles offer exceptional thermal conductivity (3-5 times higher than stainless steel), extreme hardness (Mohs 9.5), and corrosion resistance to acids, alkalis, and molten metals. They withstand temperatures up to 1600°C in air (higher in inert environments) and resist thermal shock due to low thermal expansion. Unlike graphite, SiC doesn’t oxidize readily, ensuring longer lifespan in high-temperature applications.

What maximum temperature can isostatic pressed SiC crucibles handle? These crucibles operate reliably at sustained temperatures up to 1600°C in oxidizing atmospheres and up to 1800°C in inert or reducing environments (e.g., argon, vacuum). Their performance surpasses alumina (1700°C limit) and graphite (which oxidizes above 600°C in air). However, prolonged use near upper limits may require oxidation-resistant coatings for extended durability.

What industries commonly use isostatic pressed SiC crucibles? They are widely used in metallurgy (melting gold, silver, platinum), semiconductor manufacturing (crystal growth), chemical processing (corrosive reactions), and aerospace (high-temperature testing). Their resistance to molten metals like aluminum, copper, and zinc, combined with minimal contamination risk, makes them ideal for precision applications in harsh environments.

How should sintered SiC crucibles be maintained to ensure longevity? Avoid abrupt temperature changes (>200°C/minute) to prevent thermal stress. Clean residues after each use with non-abrasive tools or diluted acids. Do not expose to hydrofluoric acid or strong alkalis at high temperatures. Store in dry conditions to prevent moisture-related microcracks. With proper care, these crucibles last 5-10 times longer than traditional materials, depending on operating conditions.

(Isotatic Pressing Sintered Silicon Carbide SiC Crucible)