The production of tantalum capacitors is a complex and labor-intensive process, consisting of a row of manufacturing, control, and auxiliary operations. The proposed innovative method, in addition to existing quality control methods, will ensure the stability reliability, and performance of tantalum capacitors.
The production of tantalum wire is usually carried out by powder metallurgy or another isostatic pressing, vacuum sintering to obtain a tantalum rod, followed by cold rolling and surface cleaning to obtain a tantalum strip, and then the wire is obtained by surface oxidation coating, stretching, pickling, water washing, and annealing.The …
Lubrication is one of the key factors to improve metal-forming quality. In the process of deep drawing, seizing tumors easily occur on the contact surfaces between …
The supply crisis of Ta has kept growing globally over the past two decades. This work presents a comprehensive review of tantalum resources and its production. …
In this work, the different strategies and methods for quantifying the quality of components produced via metal powder bed fusion (PBF) are reviewed. Both in-process and post-process approaches to quality assessment are considered. In-process quality assessment frameworks are based on in-situ process monitoring techniques. Different …
Tantalum capacitor manufacturing process consists of several steps summarized in the Block Flow Diagram of Fig. 1. The forming step is an electrochemical oxidation, namely, anodizing, allowing the growth of Ta 2 O 5 on the surface of tantalum.
Request PDF | Selective laser melting of titanium alloy with 50 wt% tantalum: Effect of laser process parameters on part quality | Selective laser melting (SLM) is a powder bed fusion additive ...
This article is written by Vladimir Azbel Ph.D., semiconductor process reliability engineer consultant, Israel, who investigates how welding of tantalum wire to tantalum capacitor pellet can be optimized to improve its quality and reliability.
By the 1990s, China had created a complete industry system that covered mining, mineral processing, metallurgy, and tantalum/niobium materials processing. At the beginning of the twenty-first century, the tantalum and niobium production scale in China expanded, over 200 product varieties of 40 series were produced, and the quality and grade ...
Tantalum (or tantalum nitride, TaN) is deposited via PVD sputtering using a target. While other materials can be used as a barrier layer, tantalum adheres well to both copper …
Tantalum supply from artisanal and small-scale mining: A mineral economic evaluation of coltan production and trade dynamics in Africa's Great Lakes region ... To this end, we evaluate coltan resources and ore bodies, grades and processing features, as well as recent production and export developments in the DRC and …
This paper presents a novel approach to performing a multi-objective technical and economic analysis of tantalum ore processing to increase the production …
Semantic Scholar extracted view of "Selective laser melting of titanium alloy with 50 wt% tantalum: Effect of laser process parameters on part quality" by S. Sing et al.
Here, we demonstrate the fabrication of high-quality factor {alpha}-tantalum resonators directly on silicon wafers over a variety of metal deposition conditions and perform a comprehensive material and electrical characterization study.
Tantalum is a rare, hard, blue-gray metal with exceptional properties that make it indispensable in various high-tech and industrial applications. Tantalum is a key material in electronics, aerospace, and medical industries known for its high melting point, excellent corrosion resistance, and remarkable ability to conduct electricity.
Tantalum and Niobium - Materials Creating the Future. TANIOBIS is a leading global producer with over 60 years of experience processing high-quality materials based on tantalum and niobium.
The preparation of tantalum is the process of reducing pure tantalum compound to metal tantalum. The raw materials are five tantalum oxide, tantalum …
The quality of the sample surface was investigated with Atomic Force Microscope (AFM). The surface morphologies of α-Ta films grown on TiN x buffer layers at RT- 500 °C temperature range are ...
The extraction and refining of tantalum, including the separation from niobium in these various tantalum-containing mineral concentrates, is generally accomplished by treating the ores with a mixture of hydrofluoric and sulfuric acids at elevated temperatures.
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In addition, we find that the introduction of an optimized wet etch process to pattern the tantalum resulted in improved edge morphology compared with reactive-ion etching (Supplementary Fig. 2).
The authors have examined three interconnected issues linked to tantalum supply interruption, which has resulted in a growing tantalum scarcity: (1) rising demand for …
Recent research has shown that the optimization result is greatly influenced by quality aspects of the products, such as cost, profit, and capacity. This paper presents a novel approach to performing a multi-objective technical and economic analysis of tantalum ore processing to increase the production of critical metals minerals.
product quality, and process cost. This paper analyses the existing plant from a techni- ... Selective Comminution Applied to Mineral Processing of a Tantalum Ore: A Technical, Economic Analysis ...
With a +/-10% repeatability for combustion oxygen measurements and an upper control limit of three sigma for a typical production process, a high-quality tantalum powder for additive manufacturing should have oxygen in the range of 150-200 ppm.
Introduction. Tantalum crucibles are revered for their exceptional properties in high-temperature applications. Yet, they undergo a meticulous manufacturing journey to ensure precision and adherence to stringent quality standards. The production of these crucibles involves a series of advanced processes.
Tungsten, tin, tantalum, and niobium ore processing technology focuses on the production of high-quality concentrates. The beneficiation process aims to remove impurities and increase the concentration of the target minerals.
These next-generation capacitors are increasingly being integrated into high-end electronics, where superior quality and longevity are paramount. ... Additionally, the Asia-Pacific region has seen significant investments in tantalum processing facilities, allowing for greater control over the supply chain and reducing dependence on imports. ...
Semantic Scholar extracted view of "Additive manufacturing of tantalum scaffolds: Processing, microstructure and process-induced defects" by Abdulmumuni Aliyu et al.
Tantalum is chiefly obtained as a by-product of tin processing, although it is also mined from the minerals columbite, tantalite and samarskite. Other tantalum-bearing minerals include ferrotantalite, manganotantalite and microlite.
Processing: extraction and refining. The extraction and refining of tantalum, including the separation from niobium in these various tantalum-containing mineral concentrates, is generally accomplished by treating the ores with a mixture of hydrofluoric and sulfuric acids at elevated temperatures. This causes the tantalum and niobium values to ...
Tantalum is an excellent choice for alloying with titanium for biomedical applications due to its' high biocompatibility, corrosion resistance and good mechanical properties. Furthermore, titanium–tantalum (TiTa) alloys are promising materials for such applications because of high strength to density ratio and low cost [34].
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