Hoʻohana mau ʻia nā pahu alumina a me zirconia i nā noi wela kiʻekiʻe, akā he mau ʻokoʻa ko lākou:

1. Mea haku mele:
- Hana ʻia nā ʻōpala alumini me ka alumini oxide (Al2O3), kahi mea seramika i ʻike ʻia no kona conductivity thermal kiʻekiʻe a me ke kūpaʻa kemika maikaʻi loa.
- ʻO nā crucibles Zirconia, ma kekahi ʻaoʻao, ua hana ʻia me ka zirconium dioxide (ZrO2), i ʻike ʻia ʻo zirconia. ʻO Zirconia ka ikaika kiʻekiʻe, ka paʻakikī a me ke kū'ē i ka haʻalulu wela.

2. Lae hehee:
- He wahi heheʻe kiʻekiʻe ka alumini oxide, ma kahi o 2050°C (3722°F), kūpono ia no nā ʻano hana wela kiʻekiʻe.
- He kiʻekiʻe ka helu heheʻe ʻana o Zirconia, ma kahi o 2700°C (4892°F), kūpono ia no nā noi e koi ana i nā mahana wela.

3. Thermal conductivity:
- Loaʻa i ka alumini oxide kahi conductivity thermal kiʻekiʻe, he mea maikaʻi ia i kekahi mau noi kahi mea nui ka hoʻololi wela.
- He haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa ʻo Zirconia i hoʻohālikelike ʻia me ka alumina, ʻoi aku ka maikaʻi ma nā noi e koi ana i ka insulation thermal.

4. Ke kū'ē kemika:
- He kūpaʻa kemika maikaʻi ka alumini oxide, no laila kūpono ia no ka hoʻohana ʻana me nā metala hoʻoheheʻe he nui a me nā wahi kemika paʻakikī.
- Hōʻike pū ʻo Zirconia i ke kūpaʻa kemika maikaʻi loa, ʻoi aku hoʻi i nā kaiapuni acidic a me ka alkaline, kūpono ia no ke koi ʻana i nā noi kemika.

I ka hōʻuluʻulu ʻana, ʻoiai ua kūpono nā alumina a me nā zirconia crucibles no nā noi wela kiʻekiʻe, ʻo ke koho ma waena o nā mea ʻelua e pili ana i nā koi kikoʻī e like me ke ʻano wela, conductivity thermal, a me ke kūpaʻa kemika.