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 Stabilite) | ∆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 |
