Microstructural and thermal evaluation of the formation of tin–tellurium (SnTe) alloy by ball milling process

AS Hakeem, SM AlMansour, MA Ehsan, Q Drmosh… - Powder Technology, 2023 - Elsevier
A mechanically induced phase transition in tin‑tellurium (Snsingle bondTe) system and its
dependence on the milling time of the masses of metastable Snsingle bondTe phase (s) …

Synthesis and characterization of alkaline earth and rare earth doped sialon Ceramics by spark plasma sintering

AS Hakeem, M Khan, BA Ahmed, A Al Ghanim… - International Journal of …, 2021 - Elsevier
Several sialon ceramics compositions were synthesized by selecting metal oxides (MOs) in
the nanosize range as additives in the oxynitride network. Nanosized precursors, including …

Microwave synthesis of duplex α/β-SiAlON ceramic cutting inserts: Modifying m, n, z values, synthesis temperature, and excess Y2O3 synthesis additive

D Hong, Z Yin, F Guo, J Yuan - Journal of Advanced Ceramics, 2022 - Springer
Duplex α/β-SiAlON ceramic cutting inserts (30α: 70β) were synthesized by microwave
sintering. The effects of solid solution parameters (m, n, z), synthesis temperature, and …

Effect of nano-and micro-sized Si3N4 powder on phase formation, microstructure and properties of β′-SiAlON prepared by spark plasma sintering

A Bake, AS Hakeem, BA Ahmed, A Ul-Hamid… - Ceramics …, 2022 - Elsevier
The phase formation behavior of β′-SiAlON with the general formula Si 6-z Al z O z N 8-z
was studied comprehensively for z values from 1 to 3 using spark plasma sintering (SPS) as …

Synthesis of Mg‐stabilized nitrogen‐rich alpha‐sialons along Si3N4–0.5Mg3N2:3AlN line via field‐assisted sintering

BA Ahmed, T Laoui, AS Hakeem - Journal of the American …, 2023 - Wiley Online Library
The present study reports for the first time the synthesis and evaluation of magnesium (Mg)‐
doped nitrogen‐rich (N‐rich) sialon ceramics exploring the possible existence of Mg …

Effect of precursor size on the structure and mechanical properties of calcium-stabilized sialon/cubic boron nitride nanocomposites

BA Ahmed, AS Hakeem, T Laoui, RMA Khan… - Journal of Alloys and …, 2017 - Elsevier
Calcium-stabilized alpha-sialon ceramics reinforced with cubic boron nitride (cBN) particles
were synthesized using spark plasma sintering. The effects of the size of alpha-sialon …

Hot-pressed sintered Ca-α-Sialon ceramics with grains from short prismatic to elongated morphology synthesized via carbothermal reduction and nitridation

J Huang, Y Miao, M Zhang, Z Feng, Z Hu, X Li… - Journal of Alloys and …, 2018 - Elsevier
Ca-α-Sialon powders was initially synthesized by carbothermal reduction-nitridation (CRN)
of SiO 2, AlN, CaF 2 and carbon black at 1700° C, subsequently was used as the raw …

Effect of Al metal precursor on the phase formation and mechanical properties of fine-grained SiAlON ceramics prepared by spark plasma sintering

MM Al Malki, RMA Khan, AS Hakeem… - Journal of the European …, 2017 - Elsevier
This paper reports the effects of using nano-precursor powders, including α-Si 3 N 4 or
amorphous-Si 3 N 4, and particularly the partial replacement of AlN by Al metal precursor …

Spark plasma sintering of SiAlON ceramics synthesized via various cations charge stabilizers and their effect on thermal and mechanical characteristics

MZ Falak, BA Ahmed, HA Saeed, SU Butt, AS Hakeem… - Crystals, 2021 - mdpi.com
Oxygen-rich SiAlON ceramics doped with various nanosized metal oxide (MO) stabilizers
were synthesized with a view to examine their effect on thermal and mechanical …

Low-temperature spark plasma sintering of calcium stabilized alpha sialon using nano-size aluminum nitride precursor

BA Ahmed, AS Hakeem, T Laoui, M Al Malki… - International Journal of …, 2018 - Elsevier
Calcium stabilized alpha-sialon ceramic was synthesized using spark plasma sintering
(SPS). The size effect of aluminum nitride precursor (1 μm and 50 nm) on the phase …