| W | |||||
| Nb1 | 0.004 | 0.004 | 0.002 | 0.005 | |
| Nb2 | 0.01 | 0.01 | 0.005 | 0.02 | |

Niobium targets are mainly composed of substrate and target material. The substrate is the support of the target material, usually made of stainless steel or nickel-based alloy, used to fix the target material and withstand high temperature. The target material is the actual working body, usually made of high-purity niobium, and sometimes some other elements (such as tantalum, zirconium, etc.) are added to improve performance. The purity of niobium targets is an important factor affecting their performance. High-purity targets can provide better performance. Generally speaking, the purity can reach more than 99.95%. Density is also an important parameter affecting the sputtering deposition rate of the target material. High-density targets usually have better sputtering rates. Surface quality has an important influence on the sputtering rate and film quality of the target material. High-quality surface helps to form a uniform and dense film.

The preparation process of niobium targets usually includes multiple steps such as raw material preparation, pressing and forming, and sintering to ensure that key indicators such as the purity, density and surface quality of the targets meet the requirements. Niobium targets come in various shapes, including flat targets, rotary targets, etc., and the sizes can be customized according to customer needs. In addition, composite targets such as aluminum-niobium alloy targets are also available.

Niobium targets can be used to manufacture semiconductor devices such as transistors, integrated circuits, and flat panel displays. Niobium products have good chemical stability and electrical conductivity. They can play a good mask and conductive role in the semiconductor manufacturing process to ensure the stability and reliability of the device. Niobium targets can be used as PVD (physical vapor deposition) coating materials for surface treatment of metals, ceramics and other materials to form wear-resistant and corrosion-resistant protective layers. Niobium products show good film-forming properties and chemical stability during the coating process, which can improve the hardness, adhesion and corrosion resistance of the coating. For example, niobium targets have important applications in industries such as liquid crystal displays (LCDs), optical coatings, tools and decorative coatings.

Niobium targets are widely used in the aerospace field, such as in the manufacture of rocket engine nozzles and high-temperature alloys. Niobium products have good high-temperature strength and corrosion resistance, and show good stability and reliability in extreme environments. Niobium targets also have potential applications in the energy field, especially with the development of superconducting technology. As an important superconducting material, niobium has excellent superconducting properties and can be used to manufacture superconducting power transmission systems, superconducting magnets, etc., thereby improving the efficiency and stability of energy transmission.
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