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First of all, hardness can be defined as the ability of a substance to resist deformation, and there can be the hardest natural substance, which is currently diamond.
Finish. Synthetic substances, such as carboxyne, or even graphene.
can have a better theoretical hardness than diamond (but it's useless, because it can't be used to make a drill.
Metal. First of all, the basis of the formation of metallic matter is metallic bonds, metallic bonds are a bunch of atoms that can slide and are composed of "electron gas" that permeate the atoms, and therefore. The toughness of pure metals is very good, hardness or something, that is naturally inferior to covalent bonds.
substances such as boron nitride, iron carbide, aluminum oxide.
Then, increasing the hardness of the metal is actually to limit the slippage of the atoms, and the so-called alloy is to improve the properties of the metal (such as corrosion resistance). It's not just to increase the hardness, because the hardness alone doesn't do much, for example, the cheapest white pig iron is almost pure iron carbide, which is very hard, but you can break it. The hardness and strength of steel is actually metallic iron.
The diffuse iron carbide particles on the substrate provide, the hardness of carbon tool steel with high carbon content is already very good, and the alloy tool steel is not because of the hardness, but because of the red hardness, that is, the hardness at high temperature (for example, high-speed steel, by adding tungsten, the hardness at high temperature is obtained, and it can be cut at high speed).
The hardness of various metal products varies with processing conditions (heat treatment, shot peening. So the hardness of the metal is a complex issue.
Finally, the hardest alloy, of course, is cemented carbide, but not hard alloy is made of metal cobalt.
As a binder, the powder of super-hard diamond, boron nitride, iron carbide and so on is bonded together, which is more like a ceramic than an alloy. If we still look at cemented carbide as an alloy, then diamond polycrystalline materials, such as metal-bonded diamond powder (diamond polycrystalline) materials, should be the accurate answer to this question!
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The hardness of the diamond grinding head is higher, but the wear resistance is not very good, if there is heat or coolant blockage, the grinding head will be damaged, and the repair may be very small. Although the hardness of tungsten carbide is a little worse, it is highly repairable and can also achieve higher accuracy.
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The diamond grinding head has high hardness.
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Mohs hardness10, new Mohs hardness 15.
Mohs hardness 10, new Mohs hardness 15, microhardness 10000kg mm2, microhardness is 1000 times higher than quartz, 150 times higher than corundum. Diamond.
The hardness has direction, octahedral crystal plane.
The hardness is greater than that of the rhombohedral dodecahedral, and the hardness of the rhombic dodecahedral crystal plane is greater than that of the hexahedral crystal plane.
According to the Mohs hardness scale, there are 10 grades, and diamond (diamond) is the highest destroyer grade and the 10th grade; For example, the hardness of a knife is about 4 for copper coins, 2 to 3 for nails, and 6 for glass.
Industrial use
Geological drill bits and oil drill bits diamond, diamond for wire drawing dies, diamond for abrasives, diamond for dressers, diamond for glass knives, diamond for hardness tester indenter, diamond for handicrafts. If applied to the audio cone, the sound quality of the speaker will be greatly improved.
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Diamond is commonly known as diamond diamond. It is often referred to as diamond, which is a mineral composed of pure carbon. Diamond is the hardest substance in nature.
Diamond is used in a wide range of applications, such as handicrafts and cutting tools in industry. Carbon can form diamonds at high temperatures and pressures.
Hardness: Mohs hardness 10, new Mohs hardness 15, microhardness 10000kg mm2, microhardness is 1000 times higher than quartz, 150 times higher than corundum. The hardness of reed diamond is directional, the hardness of the octahedral crystal plane is greater than that of the rhombohedral dodecahedral crystal plane, and the hardness of the rhombohedral crystal plane is greater than that of the hexahedral crystal plane.
According to the Mohshardnessscale, there are 10 grades, and diamond (diamond) is the highest grade 10; For example, the hardness of a knife is about 4 for copper coins, 2 to 3 for nails, and 6 for glass.
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Summary. Diamond is also called "masonry, commonly known as "diamond diamond". It is a kind of excellent physical properties such as superhard, wear-resistant, thermal, heat conductive, semiconductor and transparency, and is known as the "king of hardness" and the king of gemstones.
It is customary to refer to the processed diamond as the diamond and the unworked as the diamond. Alloy steel is harder than ordinary iron, and diamond is wear-resistant.
Diamond is also called "masonry, commonly known as "diamond diamond". It is a kind of excellent physical properties such as super-hard, wear-resistant, thermal-sensitive, heat transfer conductivity, semi-barrage conductor and transparency, and is known as the "king of hardness" and the king of gemstones. It is customary to refer to the processed as diamonds, and the unprocessed as diamonds.
Alloy steel is harder than ordinary iron, and diamond is wear-resistant.
How much more wear resistant is diamond than alloy steel? Can it be explained in data?
How much more wear resistant is diamond than alloy steel? Can it be explained in data?
Hello, help you query in detail, there is no specific data structure.
First of all, find out what kind of price you want tiles. Generally, the ** on the diamond market is more than 40 yuan per piece. If you don't have a bad money, buy a 12-line brand of diamond or diamond glaze. If you choose a cost-effective one, you can try to buy bricks of the 23-line brand.
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