Alumina ceramicni ubwoko bwibikoresho bya ceramic bigizwe ahanini na oxyde ya aluminium (AI2O3), ikoreshwa nkibikoresho byifashisha ibikoresho byamashanyarazi.Alumina ceramicifite imiyoboro myiza, imbaraga za mashini, hamwe nubushyuhe bwo hejuru. Ibiranga bituma iba imwe mububumbyi bukoreshwa cyane muburyo bwubatswe, kwambara, no kwangirika.
1. Gukomera cyane
Gukomera kwa Rockwell ni HRA80-90, ubukana buri munsi ya diyama, birenze kure kwihanganira kwambara ibyuma bidashobora kwangirika ndetse nicyuma.
2. Kurwanya kwambara neza
Upimye n'ibigo by'ubushakashatsi bw'umwuga, kwihanganira kwambara bihwanye ninshuro 266 z'ibyuma bya manganese. Gaoming cast Iron inshuro 171.5, dukurikije imyaka irenga icumi dukurikirana ubushakashatsi bwabakiriya, mubihe bimwe byakazi, birashobora kongera igihe cyibikorwa byibikoresho byibuze inshuro icumi.
3. Uburemere bworoshye
Ubucucike bwa 3.5g / cm3 ni kimwe cya kabiri cyicyuma, gishobora kugabanya cyane imitwaro yibikoresho.
| 技术参数(Ibipimo bya tekiniki) | ||
| 项目(Umushinga) | 单位(Igice) | 数值(Agaciro k'umubare) |
| 材料(Ibikoresho) |
| Al2O3> 99.5% |
| 颜色(Ibara) |
| 白色, 象牙色 (Umweru, Ivoryi) |
| 密度(Ubucucike) | g / cm3 | 3.92 |
| 抗弯强度(Imbaraga zidasanzwe) | MPa | 350 |
| 抗压强度(Imbaraga zo guhonyora) | MPa | 2,450 |
| 杨氏模量(Modulus yumusore) | GPa | 360 |
| 抗冲击强度(Imbaraga Zingaruka) | MPa m1 / 2 | 4-5 |
| 维泊尔系数(WeibullCoefficient) | m | 10 |
| 维氏硬度(Vickers Hardness) | HV 0.5 | 1,800 |
| 热膨胀系数(Coefficient yo Kwagura Ubushyuhe) | 10-6K-1 | 8.2 |
| 导热系数(Ubushyuhe bwa Thermal) | W / mk | 30 |
| 热震稳定性(Ubushyuhe bwa Thermal Shock) | ∆T ° C. | 220 |
| 最高使用温度(Gukoresha NtarengwaUbushyuhe) | ° C. | 1.600 |
| 20 ° C 体积电阻 (20 ° C Ingano yo Kurwanya) | Ωcm | > 1015 |
| 电介质强度(Imbaraga za Dielectric) | kV / mm | 17 |
| 介电常数(Dielectric Constant) | εr | 9.8 |
