Powder metallurgy is a group of advanced processes for the synthesis, processing, and shaping of various kinds of materials. Initially inspired by ceramics processing, the methodology comprising of the production of a powder and its transformation to a compact solid product has attracted great attention since the end of World War II. At present, there are many technologies for powder production (e.g., gas atomization of the melt, chemical reduction, milling, and mechanical alloying) and its consolidation (e.g., pressing and sintering, hot isostatic pressing, and spark plasma sintering). The most promising ones can achieve an ultra-fine or nano-grained structure of the powder, and preserve it during consolidation. Among these methods, mechanical alloying and spark plasma sintering play a key role. This Special Issue gives special focus to the advancement of mechanical alloying, spark plasma sintering and self-propagating high-temperature synthesis methods, as well as to the role of these processes in the development of new materials.

University of Chemistry and Technology Prague Department of Metals and Corrosion Engineering Technická 5 166 28 Prague 6 Czech Republic

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Moravcik I., Gamanov S., Moravcikova-Gouvea L., Kovacova Z., Kitzmantel M., Neubauer E., Dlouhy I. Influence of Ti on the Tensile Properties of the High-Strength Powder Metallurgy High Entropy Alloys. Materials. 2020;13:578. doi: 10.3390/ma13030578. PubMed DOI PMC

Novak P., Vanka T., Nova K., Stoulil J., Prusa F., Kopecek J., Hausild P., Laufek F. Structure and Properties of Fe-Al-Si Alloy Prepared by Mechanical Alloying. Materials. 2019;12:2463. doi: 10.3390/ma12152463. PubMed DOI PMC

Průša F., Proshchenko O., Školáková A., Kučera V., Laufek F. Properties of FeAlSi-X-Y Alloys (X,Y=Ni, Mo) Prepared by Mechanical Alloying and Spark Plasma Sintering. Materials. 2020;13:292. doi: 10.3390/ma13020292. PubMed DOI PMC

Cech J., Hausild P., Karlik M., Boucek V., Nova K., Prusa F., Novak P., Kopecek J. Effect of Initial Powders on Properties of FeAlSi Intermetallics. Materials. 2019;12:2846. doi: 10.3390/ma12182846. PubMed DOI PMC

Skolakova A., Salvetr P., Novak P., Leitner J., Deduytsche D. Mechanism of the Intermediary Phase Formation in Ti-20 wt.% Al Mixture during Pressureless Reactive Sintering. Materials. 2019;12:2171. doi: 10.3390/ma12132171. PubMed DOI PMC

Knaislova A., Novak P., Kopecek J., Prusa F. Properties Comparison of Ti-Al-Si Alloys Produced by Various Metallurgy Methods. Materials. 2019;12:3084. doi: 10.3390/ma12193084. PubMed DOI PMC

Salvetr P., Dlouhy J., Skolakova A., Prusa F., Novak P., Karlik M., Hausild P. Influence of Heat Treatment on Microstructure and Properties of NiTi46 Alloy Consolidated by Spark Plasma Sintering. Materials. 2019;12:4075. doi: 10.3390/ma12244075. PubMed DOI PMC

Skotnicova K., Prokofev P.A., Kolchugina N.B., Burkhanov G.S., Lukin A.A., Koshkid’ko Y.S., Cegan T., Drulis H., Romanova T., Dormidontov N.A. Application of a Dy3Co0.6Cu0.4Hx Addition for Controlling the Microstructure and Magnetic Properties of Sintered Nd-Fe-B Magnets. Materials. 2019;12:4235. doi: 10.3390/ma12244235. PubMed DOI PMC

Talimian A., Pouchly V., Maca K., Galusek D. Densification of Magnesium Aluminate Spinel Using Manganese and Cobalt Fluoride as Sintering Aids. Materials. 2019;13:102. doi: 10.3390/ma13010102. PubMed DOI PMC

Michalcova A., Knaislova A., Kubasek J., Kacenka Z., Novak P. Rapidly Solidified Aluminium Alloy Composite with Nickel Prepared by Powder Metallurgy: Microstructure and Self-Healing Behaviour. Materials. 2019;12:4193. doi: 10.3390/ma12244193. PubMed DOI PMC

Kubasek J., Dvorsky D., Capek J., Pinc J., Vojtech D. Zn-Mg Biodegradable Composite: Novel Material with Tailored Mechanical and Corrosion Properties. Materials. 2019;12:3930. doi: 10.3390/ma12233930. PubMed DOI PMC

Olszowka-Myalska A., Wrzesniowski P., Myalska H., Godzierz M., Kuc D. Impact of the Morphology of Micro- and Nanosized Powder Mixtures on the Microstructure of Mg-Mg2Si-CNT Composite Sinters. Materials. 2019;12:3242. doi: 10.3390/ma12193242. PubMed DOI PMC

Rizzo A., Goel S., Grilli M.L., Iglesias R., Jaworska L., Lapkovskis V., Novak P., Postolnyi B.O., Valerini D. The Critical Raw Materials in Cutting Tools for Machining Applications: A Review. Materials. 2020;13:1377. doi: 10.3390/ma13061377. PubMed DOI PMC

Strakosova A., Kubasek J., Michalcova A., Prusa F., Vojtech D., Dvorsky D. High Strength X3NiCoMoTi 18-9-5 Maraging Steel Prepared by Selective Laser Melting from Atomized Powder. Materials. 2019;12:4174. doi: 10.3390/ma12244174. PubMed DOI PMC