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Silicon nitride ceramic me ka maikaʻi o ke kino, kemika, a me nā waiwai mechanical
Loaʻa i ka silikon nitride ceramics nā mea maikaʻi loa: haʻahaʻa haʻahaʻa, kūpaʻa wela kiʻekiʻe, lubrication ponoʻī, pale ʻana i ka corrosion. ʻO Dense Si3N4Hōʻike pū nā keramika i ka paʻakikī o ka haʻihaʻi kiʻekiʻe, nā waiwai modulus kiʻekiʻe a me ka lubricity ponoʻī, hiki ke kūpaʻa maikaʻi loa i nā ʻano lole like ʻole a kū i nā wahi ʻino e hiki ai ke hoʻoheheʻe ʻia nā mea seramika ʻē aʻe, deform a hāʻule paha, me nā wela wela, nā ʻokoʻa wela nui, a me ka vacuum ultra-kiʻekiʻe.
Nā noi nui o Silicon Nitride Ceramics
ʻenehana mīkini: He kiʻekiʻe ka paʻakikī o ka silikon nitride ceramics, ke kūpaʻa maikaʻi a me ka pale ʻana i ka corrosion, a hoʻohana nui ʻia i nā kahua ʻenekinia. Hiki ke hoʻohanaʻia no ka hanaʻana i nā'āpana e like me nā bearings, nā sila, nā meaʻokiʻoki a me nā nozzles i nā mahana wela a me nā wikiwiki, e hāʻawi ana i ka hana maikaʻi loa a me ke ola lōʻihi.
ʻoihana kaʻa: Ma muli o ke kūpaʻa kiʻekiʻe o ka mahana a me ke kūpaʻa ʻana o ka silicon nitride ceramics, hoʻohana ʻia ia i ka hana ʻana i nā ʻenehana mīkini kaʻa. Hiki ke hoʻohana ʻia ka silikon nitride ceramics e hana i nā ʻāpana mīkini hana kiʻekiʻe e like me nā apo piston, cylinder liners a me nā valves, e kōkua ana i ka hoʻomaikaʻi ʻana i ka wahie a hoʻemi i nā hoʻokuʻu.
Aerospace: ʻO ke kaumaha māmā, ka ikaika kiʻekiʻe a me ke kūpaʻa wela kiʻekiʻe o ka silicon nitride ceramics e lilo lākou i mau mea kūpono no nā noi aerospace. Hiki ke hoʻohana ʻia no ka hana ʻana i nā ʻāpana koʻikoʻi e like me nā ʻāpana ʻenekini, nā ʻili turbine, nā mea hoʻokaʻawale wela a me ka pale ʻana o nā mokulele mokulele e hoʻokō i nā koi o ka wela kiʻekiʻe, ke kiʻekiʻe kiʻekiʻe a me nā kaiapuni.
ʻOihana Kimia: Hoʻohana nui ʻia ka silikon nitride ceramics i ka ʻoihana kemika ma muli o ko lākou kūpaʻa kemika maikaʻi loa a me ke kūpaʻa corrosion. Hiki ke hoʻohana ʻia ka silikoni nitride ceramics e hana i nā moku hoʻoheheʻe kemika, nā mea lawe catalyst, nā lako a me nā paipu kūpaʻa wai a me ka alkali, a hiki ke kū i ka media corrosive a me nā kūlana wela kiʻekiʻe.
Optoelectronics: ʻO ka silikon nitride ceramics loaʻa nā waiwai optical a me ka uila, no laila he mau noi koʻikoʻi lākou i ke kahua o ka optoelectronics. Hiki ke ho'ohana 'ia no ka hana 'ana i ka wela ki'eki'e a me ka mana ki'eki'e fiber amplifiers, lasers, optical communication devices and optical Windows...
| Mea hoao | hana | |
| ʻO ka mānoanoa (g/cm3) | 3.2 | |
| Modulus Elastic (GPa) | 320 | |
| Ka ratio o Poisson | 0.24 | |
| ʻO ka hoʻoheheʻe wela W/(m*k)Rum Temp | 25 | |
| Coefficient Of Thermal | 2.79 | |
| Hoʻonui (10-6/K) (RT〜500°C) | ||
| Kaha ʻAha ʻEkahi 3 Point (MPa) | 950 | |
| Weibull Modulus | 13.05 | |
| ʻO Vickers Hardness (HV10) Kg/mm | 1490 | |
| 'O'ole'a Ha'i (KI,IFR) | 6.5-6.6 | |
| Nui Pore (gm) | ≤7 | |
| Hui (nui/cm) | 25-50 | 2 |
| 50-100 | 0 | |
| 100-200 | 0 | |
| >200 | 0 | |