KONA Powder and Particle Journal
KONA Powder and Particle Journal is a peer-reviewed, international, interdisciplinary and Diamond open-access journal that publishes articles on powder and particle science and technology.

   KONA Powder and Particle Journal is a refereed scientific journal that publishes articles on powder and particle science and technology. This journal has been published annually since 1983 and is distributed free of charge to researchers, members of the scientific communities, universities and research libraries throughout the world, by Hosokawa Powder Technology Foundation established by Mr. Masuo Hosokawa in 1991.
  The Chinese character “粉” in the cover is pronounced “KONA” in Japanese, and means “Powder”. The calligraphy of it is after the late Mr. Eiichi Hosokawa, founder of the Hosokawa Micron Corporation.
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1,295 registered articles
(updated on May 23, 2024)
Online ISSN : 2187-5537
Print ISSN : 0288-4534
ISSN-L : 0288-4534
2022 Journal Impact Factor (JIF)
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Featured article
Volume 40 (2023) Pages 50-73
Comminution and Classification as Important Process Steps for the Circular Production of Lithium Batteries Read more
Editor's pick

This review describes the importance of comminution and classification processes to produce battery materials and battery electrodes, and to recycle production scrap and end-of-life battery cells. It shows how comminution and classification processes are integrated into the production of various active materials, such as spheronisation of natural graphite, grinding of nano-sized silicon and dispersion of calcined lithium metal oxides, and into the processing of electrode slurries using planetary mixers, extruders or stirred media mills. The use of mills and classifiers in the recycling of battery materials and the mechanochemical synthesis of solid sulphide electrolytes is another important topic.

Volume 40 (2023) Pages 94-108
Morphology Control of Transition Metal Oxides by Liquid-Phase Process and Their Material Development Read more
Editor's pick

Solution processing is one of the important methods in the synthesis of functional materials. This method can create various compositions and control their crystal structure, particle morphology, and size. It is expected to lead to the development of new functionality of materials. This paper introduces the relationship between powder particle morphology and material functionality, explains the various environmental response functionalities of transition metal oxides synthesized by the environmentally friendly liquid-based method, and indicates that the morphology control associates material science with art. It arouses the reader's interest and implies further potential in developing future functional materials.

Volume 40 (2023) Pages 172-185
Performance Testing for Dry Powder Inhaler Products: Towards Clinical Relevance Read more
Editor's pick

Dry powder inhaler formulations have garnered interest as a way to deliver drugs directly to the lungs in a stable, solid dosage form. Developing generics of brand-name dry powder inhalers is essential to their widespread availability but requires careful consideration in characterizing bioequivalence. This review highlights the standard characterization methods frequently employed as well as physiologically relevant measures that may aid in bioequivalence decisions. The necessity of considering in vivo relevance while performing in vitro testing is highlighted, assisting the field in shifting to physiologically relevant characterization methods.    

Volume 40 (2023) Pages 74-93
Recent Research Trend in Powder Process Technology for High-Performance Rare-Earth Permanent Magnets Read more
Editor's pick

Delve into the forefront of rare earth permanent magnet research with this insightful paper. With electric vehicles driving demand for higher-performance magnets, the quest for advanced structural control in powder metallurgy processes is paramount. Discover how innovative approaches in chemical synthesis have led to the development of submicron-sized Sm-Fe-N powders with remarkable coercivity. Explore the evolution of grain boundary control techniques and the emergence of low-thermal load consolidation methods like spark plasma sintering, crucial for enhancing remanence in next-generation magnets.

Volume 40 (2023) Pages 149-171
Mechanistic Formulation Design of Spray-Dried Powders Read more
Editor's pick

Spray drying emerges as a pivotal method in pharmaceutical manufacturing, offering versatility across various delivery routes. Its capacity to engineer particles enhances drug efficacy and stability, vital for global distribution, notably for vaccines. Despite complexities in formulation design, this review elucidates practical steps and essential background knowledge crucial for successful spray-dried microparticle formulation. It navigates through estimating solute concentration during drying, solidification kinetics, and the role of stabilizers, providing invaluable insights for practitioners striving to optimize particle properties for therapeutic delivery.

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