Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 8 of 8 for “"Mechanical Alloying (MA)"”.
-
Solid State Synthesis of Bulk Amorphous Ni – 50AT% Ti Alloy
The mechanical alloying (MA) process and hot isostatic pressing (HIP) were used to synthesize bulk amorphous Ni-Ti alloy as an alternative to the traditional methods of casting multi-component metallic alloys. Samples milled cryogenically for 10 hours provided a homogeneous lamella structure with …
-
Structural Characterization and Thermoelectric Performance of ZrNiSn Half-Heusler Compound Synthesized by Mechanical Alloying
… atomic structure were synthesized by mechanical alloying (MA) and consolidation by either Spark Plasma Sintering (SPS) or hot pressing (HP). X-Ray diffraction patterns of as milled powders and consolidated samples were compared and analyzed for phase purity. Thermal conductivity, …
-
Polymer blends formed by the solid state mechanical alloying process
… and co-workers. This novel technique, called Mechanical Alloying (MA), involves the repeated welding, working hardening, and fracture of metallic powders to form an alloy. The research presented in this thesis describes the use of the MA process to form polymer blends. Until recently there has …
-
Mechanically Processed Alumina Reinforced Ultra-high Molecular Weight Polyethylene (UHMWPE) Matrix Composites
… 2.5 wt% were milled for up to 10 hours by the mechanical alloying (MA) process performed at room temperature to produce composite powders. Compression molding was utilized to produce sheets out of the milled powders. A partial phase transformation from orthorhombic and amorphous phases to …
-
Production of steel matrix composites by mechanical milling and spark plasma sintering
… to a decrease in toughness, therefore metal matrix composite (MMC) coatings and functionally graded materials have been proposed as a good solution for improving wear resistance. In this PhD thesis powder metallurgy has been applied for the production of particle reinforced HWTSs. Mechanical …
-
Friction Consolidation of Oxide Dispersion Strengthened Incoloy ® Alloy Ma956 Powder
<p>INCOLOY® MA956 is a ferritic ODS alloy. It has very good oxidation resistance by virtue of its large chromium and aluminum concentrations and high mechanical strength and creep resistance at elevated temperatures thanks to oxide dispersion strengthening.</p> <p>The conventional processing route …
-
Production of strengthened copper materials by Mechanical Milling-Mechanical Alloying and Spark Plasma Sintering
Copper is widely used in many applications demanding high thermal and electrical conductivity, unfortunately its low hardness and wear resistance limit its performance. Work hardening has been proposed as a successful strengthening mechanism for the production of harder copper material, keeping the …
-
Consolidation of WC-Co nanocomposites synthesised by mechanical alloying
The influence of mechanical alloying (MA) milling time, temperature, sintering method and microstructure on the mechanical properties of a tungsten carbide-cobalt (WC-Co) hardmetal, based on 10wt% Co, has been established. The effects of high-energy milling for 30, 60, 180 and 300 min and the …