Alloy 4J36: Ahyɛ Fapem a Ɛgyina Gyinabea wɔ Pɛpɛɛpɛ Mfuo mu a Ultra-Low Expansion Properties
Oct 16, 2025
Sɛ́ dade-nickel aduru a bɛyɛ 36% nickel wom no, 4J36 abɛyɛ "core support" wɔ mfuw pii a ɛhwehwɛ sɛ ɛyɛ katee wɔ nsusuwii mu pintinn ne pɛpɛɛpɛyɛ mu, esiane ne soronko a ɛbɛn-zero ntrɛwmu su a ɛwɔ -250 digrii kosi 200 digrii mu nti. Ne ba a ɛwɔ hɔ no trɛw fi microelectronic afã horow so kosi macro-scale ahunmu ahyɛn so, na ɛfa nnwuma ahorow pii a ɛyɛ pɛpɛɛpɛ kɛse ho.
Wɔ nnwinnadeɛ a ɛyɛ pɛpɛɛpɛ ne nsusuiɛ mu no, 4J36 yɛ adwuma sɛ "ɔhwɛfoɔ a ɔhwɛ pɛpɛɛpɛyɛ so"-nnwinnadeɛ a wɔde susuw nneɛma a ɛyɛ gyinapɛn te sɛ gauges ne calibration blocks de wɔn ho to so sɛ ɛbɛko atia ɔhyew mu nsakraeɛ, na ɛhwɛ ma susudua no mu aba pɛpɛɛpɛ. Mfiri te sɛ telescope lens mounts ne laser interferometer guide rails nso kura nhyehyɛe no mu pintinn wɔ ɔhyew nsakrae a ɛba esiane 4J36 nti no mu, na esiw susuw pɛpɛɛpɛ a wɔhwere no ano.
Wɔ ɛlɛtrɔnik ne semiconductor adwumayɛ mu no, ne ɔhyew ntrɛwmu nsusuwii a ɛne nneɛma te sɛ dɔte ne ahwehwɛ de hyia no bɔ semiconductor chip packaging adan ne kɔbere frame ahorow ho ban fi ɔhyew nhyɛso mu mpaapaemu ho. Wɔ lithography ne etching akwan wɔ integrated circuit manufacturing mu no, dimensional stability a precision electrodes ne fixtures nso yɛ guaranteed denam 4J36.
Ahunmu ne ahobammɔ nnwuma no gyina saa "adwinnade a ɛma ɛyɛ den" yi so kɛse mpo: satellite antenna mounts ne infrared detector structural components yɛ adwuma yiye wɔ ɔhyew nsonsonoe a emu yɛ den mu wɔ ahunmu, bere a gyroscopes a ɛwɔ aprɛm akwankyerɛ nhyehyɛe mu ne optical brackets a ɛwɔ laser sights mu no de wɔn ho to ne ntrɛwmu a ɛba fam su so de hwɛ hu sɛ wɔde wɔn ani si pɛpɛɛpɛyɛ so wɔ tebea horow a emu yɛ den mu.
Ne ba a ɛwɔ hɔ no da adi nso wɔ nnuruyɛ mfiri ne ahoɔden mfiridwuma mu: CT scanner ne MRI mfiri no afã horow a ɛkyinkyini kɔ so yɛ pɛpɛɛpɛ denam 4J36 so; nsakrae afã horow a ɛwɔ LNG akorae nsukorabea ne thermocouple ahobammɔ nsateaa a ɛwɔ mfiridwuma fononoo mu no de di dwuma de brɛ ɔhyew mu nsonsonoe nhyɛso ase, na ɛhyɛ ahobammɔ akwanside ahorow mu den. Ntwahonan a ɛkari pɛ wɔ watch a ɛkorɔn-awiei ne lens mounts a ɛwɔ mfiri a wɔde hwɛ ade mu mpo nya so mfaso, na ɛma bere a wɔde yɛ pɛpɛɛpɛ ne mfoniniyɛ a ɛyɛ den no yɛ kɛse.
Efi aduruyɛdan ahorow so kosi ahunmu, efi microchips so kosi mfiri akɛse so, 4J36, a ne ntrɛwmu a ɛbɛn-zero "tumi kɛse" no yɛ "twea so ɔbo a aniwa nhu" a ɛbɔ pɛpɛɛpɛyɛ ne ahoɔden a egyina pintinn ho ban, na ɛkɔ so ma nnwuma a ɛyɛ pɛpɛɛpɛ a ɛkorɔn-nya nkɔso.
