In recent years, ultrafine tungsten powders have gained attention owing to their excellent characteristics. They have been added to hard metals and alloys with superior hardness and wear resistance.

As the fossil fuels brings about global warming and climate change, find a substitute source of clean energy such as wind energy, hydrogen energy, and solar energy has become critical. Photoelectrochemical (PEC) water-splitting technology is one of the most considerable technologies to synthesis H₂ gas as a clean energy. Titanium dioxide (TiO₂) has caught a lot attention as an effectual photoelectrode in PEC water-splitting for H₂ production owing to its unique and promising functional properties, such as high photocatalytic activity, long term photo-stability, superior oxidation ability, inertness to chemical environment, as well as low cost.

Tungsten oxide (WO3) is believed to be a remarkable and feasible photoactive material due to its stable physico-chemical characteristics under different reaction conditions. Furthermore, WO3 has a band gap energy around 2.6 eV. Nether less, bulk WO3 semiconductor, surface accumulation of photo generated charge carriers led to increase their recombination rate and eventually limiting the photocatalytic efficiency.

Employing semiconductor powders as photocatalysis for the degradation of organic pollutants in water has received a lot attention in the last decade. Titanium dioxide (TiO2) inhibits amazing photocatalyst properties including high activity, chemical stability, and low cost. Nevertheless, the photocatalytic activity of TiO2 (with band gap of 3.2 eV and excited by photons with wavelengths under 387 nm) is still limited to irradiation by UV wavelengths, so that photocatalytic process does not occur effectively during the irradiation with solar light as only about 4% of the total radiation of the solar spectrum is in ultraviolet region. 

Pure tungsten bar is made of 99.95% tungsten power and its forging and annealing process is shown by test. The bar has physical properties e.g. density 19.3g/cm3, melting point (liquid) 3422℃, electricity conductivity 30% IACS min and hardness 69hra min. It owns special characters including low thermal expansion, good thermal conductivity, sufficient resistance and high elastic modulus. The bar is widely applied in various fields, e.g. support line, lead-in line, printer needle, various electrodes, quartz furnace, filament, high-speed tools, automatic products, sputtering target and heating devices with special properties etc. Powder metallurgy is a popular method in production process. 

Currently there are two types of minerals in China: wolframite and scheelite. Tungsten is a kind of rare metal and significant strategic material. It is called "heavy stone" from ancient China. In 1783 tungsten was named by the Spaniard DE Puria. The tungsten content in the crust is 0.001%. Generally the tungsten ores are formed for the activity of granitic magma. Tungsten is a silver-white shiny metal with high melting point and high hardness after smelting. There are more than 20 types of tungsten minerals and minerals containing tungsten which are discovered.

China has the largest tungsten reserve and tungsten output whose reserve are four times of  other countries in the world, tungsten ore was found early 10th century and was called "heavy stones" at that time. Tungsten ore in China is mainly located in the Sanjiang tungsten tin metallogenic belt,West Qinling-Qilianshan metallogenic belt, Tianshan-Beishan metallogenic belt, south China metallogenic belt and north China metallogenic belt. Nanling metallogenic belt is the most richiest in south China metallogenic belt, and numerous large and super large tungsten ores are distributed in this metallogenic belt with more than 70% reserve of China. The tungsten ore in China was mainly formed in Yanshanian era accounting for 83%, Hercynian era 9%, Caledonian era 4%, Precambrian era 2% and Indosinian era 2%.

Tungsten contact is widely used in switches as a part to connect or disconnect the electricity. The so-called tungsten switch contact can be simply understood as the switch's contact point is made of metal tungsten, which has good heat resistance, lower resistance, good chemical stability and other advantages, and can be very good circuit connection or break, thereby reducing the probability of electrical equipment failure.

AC contactor is applied tungsten copper or tungsten iron contact as main connecting parts. AC refers to alternative current. Why tungsten contacts are selected for the contacts of AC contactors? Tungsten as raw material made contacts are with superior properties.

Tungsten alloy weight is used in golf to increase the weight of golf head. In order to improve the performance of golf clubs, the weight is added to the golf end. Compared with traditional weights (iron, lead, steel, zinc, etc.), tungsten alloy is more suitable as a weight for golf heads.