Chmelik, "Biocompatibility of the surface layer of pyrolytic graphite
," Thin Solid Films, vol.
The bismuth-film electrode consists of a bismuth film deposited on a substrate, which can be Au , Pt , carbon paste , glassy carbon , carbon fiber , pyrolytic graphite
, and oxides [3, 25, 26].
Highly oriented pyrolytic graphite
(HOPG; Advanced Ceramics, ZYH grade, mosaic spread = 3.5 [+ or -] 1.5[degrees]) was used as a model electrode for in situ AFM imaging, which was carried out for freshly cleaved HOPG surfaces.
The Redmi 5A sports a Metallic matte finish and features dual pyrolytic graphite
sheets at the back, which the company claims keeps the smartphone 1 degree cooler.
Xiaomi says that it's using pyrolytic graphite
sheet to improve thermal dissipation in the phone.
The work carried out by Geim and Novoselov in 2004 was a simple exfoliation method in which protrusions of highly-oriented pyrolytic graphite
(HOPG) were embedded in photoresist and adhesive tape was used to successively peel off layers of graphene .
Passive cooling technologies include heat pipe assemblies, vapor chamber assemblies, phase change materials (PCM), and advanced solid conduction materials, such as k-Core[R] encapsulated Annealed Pyrolytic Graphite
Novoselov and Geim  firstly observed a single layer of graphene from highly oriented pyrolytic graphite
using micromechanical exfoliation method.
Proplast I, pyrolytic graphite
bonded to Teflon (polytetrafluoroethylene-PTFE) was later replaced by Proplast II, in which PTFE is bonded to aluminum oxide.
The graphene based nonlinear mixing component has been completed by covering the gap with a few layer graphene film, exfoliated from a highly oriented pyrolytic graphite
. A photo of the entire graphene based frequency mixer is presented in Fig.
Starting graphite materials, such as artificial graphite, flake graphite powder, kish graphite, natural flake graphite, and highly oriented pyrolytic graphite
, also influence the graphene products.