Impact of the carbon membrane inserted below Ni in the layer exchange of multilayer graphene

CrystEngComm ◽  
2020 ◽  
Vol 22 (18) ◽  
pp. 3106-3109
Author(s):  
H. Murata ◽  
N. Saitoh ◽  
N. Yoshizawa ◽  
T. Suemasu ◽  
K. Toko
Keyword(s):  
Low Temperature ◽  
Multilayer Graphene ◽  
Carbon Membrane ◽  
High Quality

High-quality multilayer graphene on glass is achieved at a low temperature (400 °C).

Precipitation of high-quality multilayer-graphene using Al2O3 barrier and Au cap layers

2015 ◽  
Vol 1786 ◽  
pp. 13-18 ◽  
Author(s):  
Jumpei Yamada ◽  
Manabu Suzuki ◽  
Yuki Ueda ◽  
Takahiro Maruyama ◽  
Shigeya Naritsuka
Keyword(s):  
Low Temperature ◽  
Barrier Layer ◽  
Intensity Ratio ◽  
The Other ◽  
Multilayer Graphene ◽  
High Quality ◽  
Entire Surface ◽  
Capping Layer ◽  
Layer Graphene ◽  
Surface Migration

ABSTRACTThe mechanism for the precipitation of multilayer graphene was investigated with respect to the use of an Al2O3 barrier layer and Au capping layer. The Al2O3 barrier layer suppresses the dissolution of carbon into the catalyst, especially at low temperature, and assists a decrease in the density of graphene nuclei. On the other hand, the Au capping layer is beneficial to weaken the strong binding between the catalyst and the graphene carbon atoms, and enhances the surface migration of precipitated carbon adatoms. A combination of the Al2O3 barrier layer and Au capping layer is useful for the synthesis of high-quality graphene with large grains. On a sample with both layers annealed for 60 min, the area of 5-layer graphene islands is as large as 10 μm, and covers 60% of the entire surface. The Raman D/G band intensity ratio of 0.024 indicates the precipitated graphene is high quality.

AISI TYPE P20

Alloy Digest ◽  
1982 ◽  
Vol 31 (1) ◽  
Keyword(s):  
Low Temperature ◽  
Tool Steel ◽  
Die Casting ◽  
Heat Treating ◽  
High Quality ◽  
Medium Carbon ◽  
Casting Alloys ◽  
Steel Mills ◽  
Aisi Type ◽  
Quality Tool

Abstract AISI Type P20 is a chromium-molybdenum tool steel of medium carbon content. It usually is supplied in the prehardened condition (about 300 Brinell) so that the cavity can be machined and the mold or die placed directly in service; however, for some uses further treatments are employed. It is produced to high-quality tool-steel standards to permit a high luster to be achieved on the surface of the polished die cavity. P20 is used for molds for plastics and for die-casting dies for zinc and other low-temperature casting alloys. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, and machining. Filing Code: TS-393. Producer or source: Tool steel mills.

Continuous low-temperature spray drying approach for efficient production of high quality native rice starch

2021 ◽  
pp. 1-16
Author(s):  
Jamie Boon Jun Tay ◽  
Xinying Chua ◽  
Cailing Ang ◽  
Kelvin Kim Tha Goh ◽  
Gomathy Sandhya Subramanian ◽  
...  
Keyword(s):  
Low Temperature ◽  
Spray Drying ◽  
Rice Starch ◽  
Efficient Production ◽  
High Quality

High-quality epitaxial CoFe/Si(111) heterostructures fabricated by low-temperature molecular beam epitaxy

2010 ◽  
Vol 97 (19) ◽  
pp. 192501 ◽  
Author(s):  
Y. Maeda ◽  
K. Hamaya ◽  
S. Yamada ◽  
Y. Ando ◽  
K. Yamane ◽  
...  
Keyword(s):  
Molecular Beam Epitaxy ◽  
Low Temperature ◽  
Molecular Beam ◽  
High Quality

Growth of high-quality InN using low-temperature intermediate layers by RF-MBE

2002 ◽  
Vol 237-239 ◽  
pp. 1017-1021 ◽  
Author(s):  
Y. Saito ◽  
T. Yamaguchi ◽  
H. Kanazawa ◽  
K. Kano ◽  
T. Araki ◽  
...  
Keyword(s):  
Low Temperature ◽  
High Quality ◽  
Intermediate Layers

High-quality multilayer graphene on an insulator formed by diffusion controlled Ni-induced layer exchange

2017 ◽  
Vol 111 (24) ◽  
pp. 243104 ◽  
Author(s):  
H. Murata ◽  
N. Saitoh ◽  
N. Yoshizawa ◽  
T. Suemasu ◽  
K. Toko
Keyword(s):  
Multilayer Graphene ◽  
High Quality ◽  
Diffusion Controlled
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