Control of the Nano-Particle Weight Ratio in Stainless Steel  Micro and Nano Powders by Radio Frequency  Plasma Treatment

Yang, Dong‐Yeol; Kim, Youngja; Hur, Min; Lee, Hae June; Lim, Tae-Soo; Kim, Ki-Bong; Yang, Sangsun

doi:10.3390/met5042058

Cited by 7 publications

(4 citation statements)

References 23 publications

(31 reference statements)

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“…The results confirm that the polymer of natural origin PHBV can successfully replace polypropylene, maintaining similar rheological properties and better maximum volume fraction of metallic powder [199]. The analysis of the optimal binder formulation was also addressed by Ibrahim et al [200] and Yang et al [201]. Then, using metal-IM technology, a porous titanium filter media was obtained.…”

Section: Metal Injection Moldingmentioning

confidence: 57%

Advanced Injection Molding Methods: Review

Czepiel,

Bańkosz,

Sobczak-Kupiec

2023

Materials

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Injection molding is a method commonly used to manufacture plastic products. This technology makes it possible to obtain products of specially designed shape and size. In addition, the developed mold allows for repeated and repeatable production of selected plastic parts. Over the years, this technology grew in importance, and nowadays, products produced by injection molding are used in almost every field of industry. This paper is a review and provides information on recent research reports in the field of modern injection molding techniques. Selected plastics most commonly processed by this technique are discussed. Next, the chosen types of this technique are presented, along with a discussion of the parameters that affect performance and process flow. Depending on the proposed method, the influence of various factors on the quality and yield of the obtained products was analyzed. Nowadays, the link between these two properties is extremely important. The work presented in the article refers to research aimed at modifying injection molding methods enabling high product quality with high productivity at the same time. An important role is also played by lowering production costs and reducing the negative impact on the environment. The review discusses modern injection molding technologies, the development of which is constantly progressing. Finally, the impact of the technology on the ecological environment is discussed and the perspectives of the process were presented.

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Section: Metal Injection Moldingmentioning

confidence: 57%

Advanced Injection Molding Methods: Review

Czepiel,

Bańkosz,

Sobczak-Kupiec

2023

Materials

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“…As an example of a specific application, the generation of hybrid micro-nanopowders are required for metal injection molding using in situ one-step processes via RF thermal plasma treatment. 243) One of the nanopowder generators is to utilize thermal plasmas generated by a RF-ICP torch. Figure 28 shows the growth process of the nanoparticles from microscale macroparticles.…”

Section: Multiscale Simulation For Plasma Synthesis Of Micro and Nano...mentioning

confidence: 99%

Science-based, data-driven developments in plasma processing for material synthesis and device-integration technologies

Kambara

Kawaguchi

Lee

et al. 2022

Jpn. J. Appl. Phys.

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Low-temperature plasma processing technologies is essential for material synthesis, device fabrication, and surface treatment. The development of plasma-related products and services requires an understanding of the multiscale complex behaviors of plasma and the hierarchical integration of plasma generation, energy and mass transports through sheath region, surface reactions, and other processes. The importance of science-based and data-driven approaches to controlling systems is argued. The state-of-the-art of deep learning, machine learning, and artificial intelligence in low-temperature plasma science and technology is reviewed. In this review, the requirements and challenges for plasma parameter prediction and processing recipe discovery are asserted by researchers in the fields of material science and plasma processing. It also outlined a science-based, data-driven approach for development of virtual metrology in plasma processes.

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“…Over the last few decades, thermal plasma technology has attracted wide attention in synthesizing ultra-fine powders through gas-phase reaction due to its high temperature, high enthalpy, high quenching rate, clean reaction atmosphere, and wide range of controllable conditions [ 20 , 21 , 22 , 23 , 24 , 25 ]. Compared with DC plasma, radio frequency (RF) plasma has advantages such as a cleaner reaction atmosphere, higher energy, a larger reaction chamber, and being more suitable for synthesizing high-purity materials because of no electrode contamination.…”

Section: Introductionmentioning

confidence: 99%

Controllable Preparation of Spherical Molybdenum Nano-Powders by One-Step Reduction of APM in Radio Frequency Hydrogen Plasma

Wang

Chen

et al. 2022

Materials

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Spherical molybdenum nano-powders were in-situ ultrafast synthesized from ammonium paramolybdate (APM) raw materials in a one-step reduction method by radio frequency (RF) hydrogen plasma. Due to the extreme conditions of the RF plasma torch such as its high temperature and large temperature gradient, the injected raw APM powder was quickly gasified and then reduced into nano-sized metal molybdenum (Mo) powder. The influences of APM powder delivery rate and H2 concentration on the properties of the obtained powders were investigated. Field-emission scanning electron microscope (FESEM), transmission electron microscope (TEM), X-ray diffraction (XRD), nanolaser particle analyzer, and specific surface area method were used to characterize the morphology, phase, and particle size distribution of the powders. The results showed that the nano-sized Mo powder obtained by hydrogen plasma treatment had a quasi-spherical morphology and an average particle size of about 30 nm. The particle size could be successfully adjusted by varying H2 concentrations. In addition, spherical nano-sized MoO3 powder could be obtained when no H2 was added into the RF plasma.

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Control of the Nano-Particle Weight Ratio in Stainless Steel Micro and Nano Powders by Radio Frequency Plasma Treatment

Cited by 7 publications

References 23 publications

Advanced Injection Molding Methods: Review

Advanced Injection Molding Methods: Review

Science-based, data-driven developments in plasma processing for material synthesis and device-integration technologies

Controllable Preparation of Spherical Molybdenum Nano-Powders by One-Step Reduction of APM in Radio Frequency Hydrogen Plasma

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