Arc plasma torches are the primary components of various industrial thermal plasma processes involving plasma spraying, metal cutting and welding, thermal plasma CVD, metal melting and remelting, waste treatment and gas production. They are relatively simple devices whose operation implies intricate thermal, chemical, electrical, and fluid dynamics phenomena. Modeling may be used as a means to ...

We have newly applied Rapid Thermal Annealing (RTA) for the post-annealing of mist chemical-vapor-deposition (CVD)-derived Hf1−xZrxO2 (HZO) thin films. A ferroelectric polarization-electric field (P–E) curve was confirmed typically with noticeable polarization reversal currents. These properties HZO films provided quantitative estimation Pr and Ec ∼20 µC/cm2 1–1.5 MV/cm, respectively, compared ...

Abstract Two-dimensional (2D) materials have emerged as a promising class of with unique physical and chemical properties that offer exciting prospects for various applications. Among all the synthesis methods, vapor deposition (CVD) techniques demonstrated great advantages in large-scale production 2D controlled thickness. One main challenges growth is need high temperatures crystalline substr...

Two-dimensional (2D) semiconductors have been proposed for heterogeneous integration with existing silicon technology; however, their chemical vapor deposition (CVD) growth temperatures are often too high. Here, we demonstrate direct CVD solid-source precursor synthesis of continuous monolayer (1L) MoS2 films at 560 °C in 50 min, within the 450-to-600 °C, 2 h thermal budget window required back...

Thermal considerations hecome important for optimal operation of high power heterojunction bipolar transistors (HBTs) in applications such as the next generation of phased-array radar systems. In particular, devices grown on GaAs substrates suffer due to the mediocre thermal conductivity of the III-V compound semiconductors. The maximum achievable power density before device performance degrade...

Microstructures of yttria stabilized zirconia thin fi lms deposited by aerosol assisted chemical vapor deposition (AA-CVD) are correlated with the thermal decomposition behavior of the corresponding metal precursors, zirconium and yttrium 2,4-pentanedionate. Process conditions of AA-CVD are investigated with the aim of producing dense and compact YSZ thin fi lms for applications as gas-tight el...

Bilayer graphene is an intriguing material in that its electronic structure can be altered by changing the stacking order or the relative twist angle, yielding a new class of low-dimensional carbon system. Twisted bilayer graphene can be obtained by (i) thermal decomposition of SiC; (ii) chemical vapor deposition (CVD) on metal catalysts; (iii) folding graphene; or (iv) stacking graphene layers...