Baoji Fairy Titanium Industry Co., Ltd. is one of the leading manufacturers and suppliers of astmb708 r05200 tantalum foil sheet in China. Welcome to wholesale bulk high quality customized products made in China here from our factory. Good service and low price are available.
1. Tantalum foil sheet is also called Ta foil. It is a flat, thin sheet or foil that is made of pure tantalum RO5200, which can be punched, bent, bulged, flanged, and shallowly stretched. It is one of the important materials in the electronics industry.
2. Tantalum foil sheet product specifications:
Size: 0.02×1.0mm, 0.02×2.0mm, 0.02×2.5mm, 0.03×1.0mm, 0.03×1.5mm, 0.076×4.0mm, 0.076×5.0mm, 0.076×6.0mm
Standards: ASTM B708-12(2019)
| Ta foil thick(mm) | Width(mm) | Length(mm) |
| 0.03-0.09 | 30-150 | ＜2000 |
3. The characteristics of the tantalum foil sheet
Atomic number 73, chemical symbol Ta
High-temperature resistance, ductility, and corrosion resistance
The coefficient of thermal expansion is very small
4. What are the applications of tantalum foil sheets?
Tantalum foil is mainly used in lighting materials; it is used to make common electric light source products such as foil capacitors, halogen lamps, and quartz glass lamps.
5. Our advantages
The tantalum foil sheet produced by our company is bright, with no cracks, no peeling, no folding, no obvious oxidation, impurity pressing, or other defects. We have several years of tantalum metal processing experience, and the satisfaction from our customers not only from domestic but also overseas. As a leading tantalum foil sheet supplier, tantalum RO5200 foil sheet, and tantalum precision foil stock, we can provide you not only with stable quality products but also with whole after-sales service. If you want to buy a tantalum foil sheet, pls contact us at sales@tmsalloy.com without hesitation.
FAQ
Q: 1. What are the main factors affecting tantalum foil price fluctuations?
A: 1) Upstream tantalum ore supply: Tantalum ore resources are concentrated, and geopolitical events such as mine strikes directly affect raw material costs; 2) Downstream demand: Especially the prosperity of the electronics industry (such as smartphones, 5G, and automotive electronics); 3) Processing difficulty: The thinner, wider, and more precise the tantalum foil, the lower the processing yield, and the price rises exponentially; 4) Geopolitical factors: Tantalum is listed as a key strategic mineral, and changes in the export policies and reserves of relevant countries also affect market expectations.
Q: 2. I heard that tantalum foil can be anodized. What is this technology?
A: This is a precision machining technology. Utilizing the principle of anodizing, a local voltage is applied to the area on the tantalum foil surface where cutting is needed, causing an oxide film to form. Then, the oxide film is removed through chemical dissolution or mechanical action, achieving stress-free and burr-free precise cutting. This is valuable for manufacturing miniature tantalum capacitors.
Q: 3. What causes tantalum foil to become brittle in a high-temperature vacuum environment?
A: Although a vacuum environment prevents oxidation, if the vacuum level is not high enough (the residual atmosphere contains oxygen or nitrogen), or if the tantalum foil itself contains impurities, at high temperatures, impurity elements (such as oxygen and carbon) at the grain boundaries will diffuse and segregate, leading to grain boundary weakening and thus intergranular embrittlement. This is different from the mechanism of "hydrogen embrittlement."
Q: 4. What might cause excessive leakage current in tantalum foil capacitors?
A: Possible causes include: 1) Insufficient purity of the tantalum foil substrate, with impurities causing oxide film defects; 2) Improper control of the anodizing process, resulting in uneven oxide film thickness or crystallization; 3) Mechanical damage such as scratches or microcracks on the tantalum foil surface, preventing the formation of a complete film layer during oxidation; 4) Contamination introduced during later assembly processes.
Contact Us
No.11th Road of Gaoxin, Baoji, Shaanxi, P.R.China
Tel: +86-0917- 3664600
Fax: +86-0917- 3664600
WhatsApp: +8618791798690
Mail: sales@tmsalloy.com
Hot Tags: astmb708 r05200 tantalum foil sheet, China, suppliers, manufacturers, factory, customized, wholesale, bulk, low price, for sale, in stock, buy discount, made in China, R05200 Ta Foil ASTMB708, Tantalum
