W-Mo合金纳米粉末的自蔓延高温合成与表征

doi:10.19976/j.cnki.43-1448/TF.2026023

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (614 KB) HTML (0 KB)
Export: BibTeX | EndNote (RIS)

Abstract To address the issues of complex processing, high energy consumption, and difficulties in uniformity control associated with existing methods for preparing W-Mo alloy nanopowders, this study proposes a novel combined process of chemical coprecipitation, calcination, and self-propagating high-temperature synthesis. Using ammonium paratungstate and ammonium molybdate as raw materials, a composite oxide precursor with a single W_0.4Mo_0.6O₃ solid solution structure was prepared via coprecipitation followed by calcination at 550  ℃, thereby achieving atomic-scale homogeneous mixing of W and Mo elements. The effects of the material ratio on the phase constitution and microstructure of the products obtained by magnesiothermic reduction self-propagating high-temperature synthesis were systematically investigated by scanning electron microscope, energy dispersive spectrometer, X-ray diffractometer, and X-ray photoelectron spectrometer. The results indicate that a fully alloyed single solid-solution phase can be obtained when the mass ratio of the precursor to Mg powder is 1∶1. The addition of an equal mass of NaCl diluent effectively moderates the combustion temperature and mass transfer conditions, inhibits grain growth and particle agglomeration, and enables the successful preparation of crushable W-44Mo alloy nanopowder with an average particle size of approximately 30 nm and uniform composition. This method provides a new approach for the efficient preparation of high-melting-point alloy powders.

Key words： W-Mo alloy nanopowder self-propagating high-temperature synthesis microstructure chemical coprecipitation

Received: 21 February 2026 Published: 08 September 2026

ZTFLH:

TF123

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	ZHANG Baoguang
	HUANG Yuanping

Cite this article:

ZHANG Baoguang,HUANG Yuanping. Self-propagating high-temperature synthesis and characterization of W-Mo alloy nanopowders[J]. Materials Science and Engineering of Powder Metallurgy, 2026, 31(4): 355-363.

URL:

http://pmbjb.csu.edu.cn/EN/10.19976/j.cnki.43-1448/TF.2026023 OR http://pmbjb.csu.edu.cn/EN/Y2026/V31/I4/355

[1] 李博, 王猛, 杨明川, 等. 径向复合钨合金杆的气体渗碳及力学性能[J]. 粉末冶金材料科学与工程, 2024, 29(3): 201-209.
LI Bo, WANG Meng, YANG Mingchuan, et al.Gas carburization and mechanical properties of radial composite tungsten alloy rods[J]. Materials Science and Engineering of Powder Metallurgy, 2024, 29(3): 201-209.
[2] ASHLEY J, MIYAMOTO M, HATANO Y, et al.Helium bubble behaviour in W-Mo alloys by in-situ TEM under He+ irradiation[J]. Journal of Nuclear Materials, 2025, 616: 156017.
[3] 严春雷, 宋东及, 任俊业. ZrC-AlN强化Mo基复合材料的制备和性能[J]. 粉末冶金材料科学与工程, 2025, 30(1): 42-50.
YAN Chunlei, SONG Dongji, REN Junye.Preparation and properties of ZrC-AlN reinforced Mo-based composites[J]. Materials Science and Engineering of Powder Metallurgy, 2025, 30(1): 42-50.
[4] PATRA A, SAXENA R, KARAK S K.Combined effect of Ni and nano-Y₂O₃ addition on microstructure, mechanical and high temperature behavior of mechanically alloyed W-Mo[J]. International Journal of Refractory Metals and Hard Materials, 2016, 60: 131-146.
[5] JIANG D Y, ZHOU Q, XUE L, et al.First-principles study the phase stability and mechanical properties of binary W-Mo alloys[J]. Fusion Engineering and Design, 2018, 130: 56-61.
[6] MARTINEZ G, RAMANA C V.Microstructure, mechanical and electrical properties of nanocrystalline W-Mo thin films[J]. AIP Advances, 2017, 7(12): 125201.
[7] CHAKRABORTY S P, BANERJEE S, SANYAL G, et al.Studies on the synthesis of a Mo-30 wt% W alloy by non- conventional approaches[J]. Journal of Alloys and Compounds, 2010, 501(2): 211-217.
[8] SHI S J, JIN Z J, BAO Y, et al.Study of milling time and process control agent on W-Mo-Cr pre-alloying powders[J]. Materials and Manufacturing Processes, 2016, 31(7): 926-932.
[9] CHEN Q Y, LIANG S H, LI B X, et al.Sol-gel synthesis and characterization of tungsten-molybdenum solid solution nanoparticles[J]. International Journal of Refractory Metals and Hard Materials, 2021, 100: 105668.
[10] ZHANG H, ZHANG G H.Preparation of ultrafine tungsten- molybdenum composite powder and its sintering behavior[J]. Metals and Materials International, 2021, 27(6): 1649-1661.
[11] ZHANG B G, YANG K, HUANG Z F, et al.Recent advances in W-Cu composites: a review on the fabrication, application, property, densification, and strengthening mechanism[J]. Advanced Engineering Materials , 2024, 26(1): 2301204.
[12] GILLELAND C A, HORNBUCKLE B C, DARLING K A, et al.Understanding the impact of high-energy ball mill tooling on powder refinement and alloy formation: microstructural evolution in immiscible W-Cr alloys[J]. Powder Metallurgy, 2026, 69(1): 14-27.
[13] 周哲, 夏大旺, 李智, 等. 溶胶凝胶、碳热/硼热还原法制备ZrB₂-SiC-LaB₆超细复相粉体[J]. 粉末冶金材料科学与工程, 2023, 28(3): 223-232.
ZHOU Zhe, XIA Dawang, LI Zhi, et al.Preparation of ZrB₂-SiC-LaB₆ ultrafine multiphase powders by sol-gel and carbothermal/borothermal reduction[J]. Materials Science and Engineering of Powder Metallurgy, 2023, 28(3): 223-232.
[14] LIU R, XIE Z M, FANG Q F, et al.Nanostructured yttria dispersion-strengthened tungsten synthesized by sol-gel method[J]. Journal of Alloys and Compounds, 2016, 657: 73-80.
[15] LI M C, WANG L, XUE Z L.Preparation of ultrafine Mo powder by the H₂ reduction of MoO₂: parameter optimization, reaction kinetic, and its reduction mechanism[J]. International Journal of Refractory Metals and Hard Materials, 2023, 116: 106358.
[16] WU Y J, LÜ Z P, SUN H B, et al.Production of different morphologies and size of metallic W particles through hydrogen reduction[J]. Journal of Materials Research and Technology, 2019, 8(5): 4687-4698.
[17] 赵卓聪, 刘咏, 王丽, 等. 稀释剂含量对自蔓延高温合成金刚石表面钨层的影响[J]. 粉末冶金材料科学与工程, 2025, 30(6): 557-564.
ZHAO Zhuocong, LIU Yong, WANG Li, et al.The influence of diluent content on the tungsten layer on the surface of self-propagating high-temperature synthetic diamond[J]. Materials Science and Engineering of Powder Metallurgy, 2025, 30(6): 557-564.
[18] DINE S, KENTHESWARAN V, VREL D, et al.Synthesis of nanometric MoNbW alloy using self-propagating high- temperature synthesis[J]. Advanced Powder Technology, 2017, 28(7): 1739-1744.
[19] KENTHESWARAN V, DINE S, VREL D, et al.Synthesis of nanometric refractory alloys powders in the Mo-Nb-W system[J]. Journal of Alloys and Compounds, 2016, 679: 80-87.
[20] MOSER M, DINE S, VREL D, et al.Elaboration and characterization of WMoTaNb high entropy alloy prepared by powder metallurgy processes[J]. Materials, 2022, 15(15): 5416.
[21] CHEETHAM A K.Low-temperature preparation of refractory alloys[J]. Nature, 1980, 288(5790): 469-470.
[22] PARAGUAY-DELGADO F, VERDE Y, CIZNIEGA E, et al.Synthesis and characterization of porous Mo-W oxide nanostructures[J]. Journal of Nanoscience and Nanotechnology, 2008, 8(12): 6445-6450.
[23] LIU Y N, LIU Y S, MA L W, et al.Preparation of W_0.4Mo_0.6O₃ from secondary resources by a simple heat-treatment process and discussion of its superior selective adsorption properties[J]. The Journal of the Minerals, Metals & Materials Society, 2023, 75(9): 3455-3466.
[24] ZHANG B, HUANG Y, GAO W, et al.Synthesis of WMoTaNb nanopowders by molten salt-assisted magnesiothermic reduction[J]. Materials Letters, 2025, 399: 139043.
[25] AHN M, PARK Y, LEE S H, et al.Memristors based on (Zr, Hf, Nb, Ta, Mo, W) high-entropy oxides[J]. Advanced Electronic Materials, 2021, 7(5): 2001258.
[26] ZONG F J, MENG C Z, GUO Z M, et al.Synthesis and characterization of magnesium nitride powder formed by Mg direct reaction with N₂[J]. Journal of Alloys and Compounds, 2010, 508(1): 172-176.
[27] CHEN Q Y, LIANG S H, ZHANG J L, et al.Preparation and characterization of WMo solid solution nanopowders with a wide composition range[J]. Journal of Alloys and Compounds, 2020, 823: 153760.
[28] PANICHKINA V V, SKOROKHOD V V, KHRIENKO A F.Activated sintering of tungsten and molybdenum powders[J]. Soviet Powder Metallurgy and Metal Ceramics, 1967, 6(7): 558-560.
[29] OU Y J, LA P Q, ZHU D D, et al.Preparation and characterization of amorphous B powders by salt-assisted SHS technique[J]. Advances in Materials Science and Engineering, 2015, 2015(1): 287143.
[30] LI Z N, OU Y J, LA P Q, et al.Submicron LaB₆ powders with high purity prepared in large scale by salt-assisted combustion synthesis[J]. Journal of Rare Earths, 2018, 36(6): 623-629.
[31] KHANRA A K, PATHAK L C, MISHRA S K, et al.Effect of NaCl on the synthesis of TiB₂ powder by a self-propagating high-temperature synthesis technique[J]. Materials Letters, 2004, 58(5): 733-738.
[32] GEGENTANA, CUI L, ZHOU L P, et al.A deep potential molecular dynamics study on the ionic structure and transport properties of NaCl-CaCl₂ molten salt[J]. Ionics, 2024, 30(1): 285-295.