A comparative study of MoSi2 coatings manufactured by atmospheric and vacuum plasma spray processes

Preparation of agglomerated powders for air plasma spraying MoSi2 coating

“…This phenomenon is also generally found in vacuum or HVOF plasma-sprayed process [24]. The ratio of the intensity of Mo 5 Si 3 /MoSi 2 in MoSi 2 coating sprayed from the agglomerated powders is lower, compared to that of from the irregular powders [12], indicating the agglomerated powders can reduce its oxidation during APS process.…”

“…Each technique presents various advantages and disadvantages depending upon the coated component and the required application. MoSi 2 coatings have also been fabricated by high velocity oxygen fuel spraying (HVOF) and air plasma spraying technology (APS) [12,13]. The APS technique is found to be a good choice for preparing the MoSi 2 coatings on various substrates efficiently.…”

Oxidation‐Resistant Environmental Barrier Coatings for Mo‐Based Alloys: A Review

“…There are also several studies on MoSi 2 coatings manufactured by APS. [43,71,72] Due to oxidation of the MoSi 2 powder during spraying, Mo 5 Si 3 and SiO 2 are formed. [72] A network structure of MoSi 2 and Mo 5 Si 3 has formed in the coating (see Figure 22).…”

In-situ synthesis of MoSi2 coating on molybdenum substrate by electro-deoxidation of a SiO2 layer in molten salt

“…Up to now, several techniques, such as pack cementation, plasma spraying, chemical vapor deposition, magnetron sputtering and molten salt method, have been adopted for preparing MoSi 2 coating [5][6][7]. Among them, the molten salt methods including electrochemical and diffusional synthesis (non-current transfer) are of some advantages due to the relatively lower operable temperatures ( o 1000 1C) [8][9][10].…”