The infinite connection between white corundum and future technology
Everyone in the technology circle knows that new materials are hard currency. Who would have thought that white corundum, which looks like white sugar, would become the “invisible promoter” of the future technological revolution. From mobile phone chips to Mars rover parts, from quantum computers to controlled nuclear fusion devices, it can be found everywhere. Today, let’s take off this layer of technological coat and see how this industrial veteran does great things quietly.
The hard-core properties of white corundum are simply tailor-made for future technology. With a Mohs hardness of 9.0, it is only a breath worse than diamond. A photolithography machine factory in Shanghai has conducted a comparative experiment. The surface roughness of the guide rail surface polished with white corundum can reach Ra0.008μm. Technician Xiao Li held the workpiece and smacked his lips: “With this precision, a mosquito would break a bone if it stood on it!”
The thermal stability is even more outrageous. Data from a controlled nuclear fusion laboratory in Qingdao showed that white corundum-based ceramics withstood a high temperature of 2000℃ for 100 hours, and the size change was less than 0.01%. Researcher Lao Wang patted the vacuum chamber and said: “This material can stand on the surface of the sun for two days!”
In the nano-scale battlefield of chip manufacturing, white corundum has long been a “sweeping monk”. A wafer factory in Taizhou used 0.1μm white corundum micro-powder to cut silicon wafers, and the edge collapse rate was reduced to 0.2‰. Master Lao Chen stared at the microscope and laughed: “Now cutting wafers is more efficient than cutting tofu, and the yield rate is directly up to 99.98%!”
The polishing of the lithography machine lens is even more true. The data from a laboratory in Beijing is jaw-dropping: the lens is treated with white corundum nano-polishing liquid, and the surface flatness is up to λ/50 wavelength. Technical Director Lao Liu gestured and said: “This precision is equivalent to installing a plane mirror on the Pacific Ocean!”
White corundum has the final say in the processing of Mars rover parts. A certain aerospace device factory in Xi’an uses white corundum grinding wheels to grind titanium alloy brackets, and the surface residual stress is controlled to within ±5MPa. Chief Engineer Lao Zhang said with a cigarette in his mouth: “With this level, Musk has to pass a cigarette to ask for advice!”
Aerospace engine blades have reached new heights. The data of a certain aviation engine company in Chengdu is eye-catching: white corundum ceramic-based composite blades, with a temperature resistance of up to 1600℃. Test driver Lao Li looked at the dashboard and drooled: “With this performance, jet engines have to call daddy!”
White corundum is very good at cutting power battery pole pieces. A battery factory in Ningde measured: using white corundum sand wire to cut graphene coatings, the burr height is controlled to below 0.5μm. Workshop director Lao Zhou patted the battery cell and said happily: “The energy density of this battery is better than Tesla’s!”
White corundum is good at cooling quantum computers. A laboratory in Hefei has developed a nano-scale white corundum thermal conductive film with a thermal conductivity of 400W/m·K. Researcher Lao Ma boasted: “Now the heat dissipation of quantum bits is faster than applying a fever patch!”
The first wall material of nuclear fusion is more hard power. The white corundum composite ceramic of a research institute in Mianyang has a neutron irradiation damage threshold that is 6 times higher than that of traditional materials. Chief Engineer Lao Zhao pointed to the reactor and said: “This material will definitely be stable until the commercial reactor is put into production!”
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