Material

Alloying of molybdenum

The alloying principle of molybdenum is similar to that of tungsten. All the strengthening methods used to improve the heat resistance of tungsten are basically applicable to molybdenum. There are mainly the following types: solid solution strengthening, precipitation strengthening, dispersion strengthening and composite strengthening. Solution strengthening Solid solution strengthening includes the addition of trace elements […]

Material

Strengthening of Tantalum

In refractory metals, the ductile-brittle transition temperature of tantalum is lower than -196℃, which has the best low-temperature plasticity. While maintaining this characteristic, it should be alloyed to increase its high-temperature strength. Tantalum alloys can be strengthened by solid solution strengthening, precipitation strengthening and a combination of both. The best solid solution strengthening elements are […]

Material

Nitinol Applications

Although many nitinol applications are not well-known to the public, some applications are quite routine and familiar. The spectacle frame made of Nitinol severely deformed and then returned to normal. Similarly, a few years ago, when mobile phone antennas were made of Nitinol, they could bend without breaking or permanently bending. Another superelastic application of […]

Material

The performance influencing factors of pyrolytic boron nitride

The production efficiency of boron nitride produced by chemical vapor deposition is high, but this method is easy to introduce pores and impurities into the sintered body and anisotropy caused by hot pressing. This makes its application very limited, especially in high temperature and oxidizing environments. Pyrolytic boron nitride materials have excellent physical and chemical […]

Material

Element Properties: 39-45 atomic number

YTTRIUM, ZIRCONIUM, NIOBIUM, MOLYBDENUM, RUTHENIUM, RHODIUM YTTRIUM Atomic symbol: Y Atomic weight: 88.90585 Atomic number: 39 Electron configuration: 2-8-18-9-2 Oxidation states: +3 State of matter: solid Heavy metal, brittle Discovered in 1794 by Johan Gadolin Boils at 3337°C, melts at 1529°C Notes: Yttrium is an iron gray, lustrous, and darkens when exposed to light. It is […]

Material

Rare earth intermetallic compounds

Rare-earth intermetallic compounds are metal compound phases formed between rare-earth metals and other metals or similar metals. They mainly use the special physical and chemical properties of rare-earth intermetallic compounds to prepare new rare earths for various purposes using various processing and manufacturing techniques. Functional Materials. At present, there are the following rare earth metal […]

Material

Machining processes of tungsten Ⅱ

Tungsten, or wolfram, is a chemical element with the symbol W and atomic number 74. The most important properties of tungsten are high melting point and high density. Meanwhile, the hardness is high and its ductility is poor to other refractory metals. All the properties make tungsten metal hard to be machined, here we will introduce […]

Material

Introduction to Pyrolytic Boron Nitride (PBN)

Pyrolytic Boron Nitride, abbreviated as Pyrolytic BN or PBN, also known as Chemical vapour-deposited Boron Nitride, Chemical Vapour-deposition of Boron Nitride or CVD-BN, etc. As the name suggests, this is a kind of boron nitride prepared by high temperature pyrolysis reaction by chemical vapor deposition method. Speaking of boron nitride, we must first talk about […]

Material

Element Properties: 30-38 atomic number

ZINC Atomic symbol: Zn Atomic weight: 65.39 Atomic number: 30 Electron configuration: 2-8-18-2 Oxidation states: +2 State of matter: solid Heavy metal, low melting Discovered in the 13th century Boils at 907°C, melts at 419°C Notes: Zinc is a bluish white lustrous metal, stable in dry air. On exposure to moist air, it becomes covered […]

Material

Overview of Nitinol Material

Titanium nickel alloy, also known as Nitinol, is a binary alloy composed of nickel and titanium. The atomic percentages of these two elements are approximately equal. Austenitic phase and martensite phase Due to changes in temperature and mechanical pressure, Nitinol has two different crystal structure phases, namely an austenite phase and a martensite phase. In […]

Material
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