URL
type
status
date
slug
summary
tags
category
icon
password
SISIC (RBSiC) square beams are reaction-bonded/silicon-infiltrated silicon carbide beams that contain a small amount of free silicon, giving them high density, high bending strength, near-zero firing shrinkage, and excellent dimensional precision; however, their recommended continuous service temperature is generally limited to about 1,300–1,380°C due to the melting point of residual silicon.
Tech Data sheet of SISIC/RBSIC BEAMS
Item | Unit | Data |
Max Working temperature | ℃ | 1380 |
Density | g/cm³ | ≥3.02 |
Porosity | % | <0.1% |
Bending Strength | Mpa | 250(20℃) |
ㅤ | Mpa | 280(1200℃) |
Modulus of elasticity | Gpa | 330(20℃) |
ㅤ | Gpa | 300(1200℃) |
Thermal conductivity | W/m.k | 45(1200℃) |
Coefficient of thermal expansion | K-1×10-6 | 4.5 |
Rigidity | ㅤ | 13 |
Acid alkaline-proof | ㅤ | Excellent |
RSIC (recrystallized SiC) square beams are made by very high-temperature recrystallization, producing a highly pure SiC skeleton with open porosity; they offer outstanding high-temperature stability and thermal shock resistance and can typically operate up to about 1,600–1,650°C, but their room‑temperature bending strength is usually lower than dense reaction‑bonded grades.
Tech Data sheet of RSIC BEAMS
Item | Unit | Result |
CHEMICALS | ㅤ | ㅤ |
SIC | Vol% | ≥99 |
Physical Properties | ㅤ | ㅤ |
Bulk density | g/cm3 | 2.65~2.75 |
Porosity | % | <15 |
Modulus of rupture at 20°C | Mpa | 90~100 |
Modulus of rupture at 1200°C | Mpa | 100-110 |
Hardness at 20°C | Kg/mm2 | 1800-2000 |
Fracture toughness at 20°C | MpaxM1/2 | 1.8~2.0 |
Thermal Conductivity at 1200°C | W/(m.k) | 35~36 |
Thermal expansion at 20 ~1200°C | x10-6℃ | 4.6 |
Thermal shock resistance at 1200° | Very good | |
Max operation temp. | ℃ | 1650 |
- Author:QDSIC
- URL:https://blog.qdsic.com/article/SISIC-BEAMS-VS-RSIC-BEAMS
- Copyright:All articles in this blog, except for special statements, adopt BY-NC-SA agreement. Please indicate the source!
