The technology will enable the development of 2D materials from digital processing to data storage and ultimately to photo-touch devices; the versatility of the material allows multiple electronic devices to be scaled down and integrated into one device.
Xia Hong and colleagues used an atomic-thickness molybdenum disulfide (MoS2) sheet as a compound whose electrical conductivity is similar to that of silicon. The researchers first covered a layer of ferroelectric polymer on MoS2; it reversed the arrangement or polarization of positive and negative charges by applying an electric field to the polymer.
The staff found that by selectively applying a voltage to the polymer surface, the polarization of the polymer can be controlled to reconfigure the electronic properties of the MoS2.
When the positive and negative charges of the polymer are aligned against the MoS2 layer or away from the MoS2 layer, the current of the MoS2 sheet is free to flow in both directions and is equal to the applied voltage. In this state, MoS2 has the function of a transistor, which is a digitally processed signal component represented by the binary language 1s and 0s forms for releasing or suppressing current.
When the researchers polarized the polymer in different ways - creating two perpendicular but relatively aligned polarization domains, the performance of the MoS2 layer changed; when applying equal voltages and different polarities, The MoS2 layer becomes a diode that only allows current to flow in one direction and not in the other.
Hong introduced that the MoS2 maintains its transistor and diode performance even when the voltage is removed. Hong calls this technical quality of low voltage requirements "very promising low-voltage technology equipment." The mechanical properties of such atomic thickness semiconductors and ferroelectric polymers are well suited for flexible wearable electronic products.
The reversibility of this technology helps to improve the traditional old method of semiconductor processing, namely doping; doping is a chemical process that imparts semiconductor design functions.
“The technology doesn't require any chemical changes, just electrical reprogramming of the material's function,†says Hong.
The study was published in the journal Physical Review. ( Compile: China Superhard Materials Network )
Yangzhou Chengde have the certification of API 5L and API 5CT, so we permit to produce and sell the API pipes with the Chengde brand directly.
We can produce the API pipes according to the API 5L standard, such as the GR.B Steel Pipe, X42 steel pipe, X52 steel pipe, X65 steel pipe, X70 steel pipe, X80 steel pipe, etc.
The follow table is our main reference list on the API 5L product
|
Customer |
PJT name |
Grade and size range |
Quantity(MT) |
|
Keppel |
N/A |
X52/X65 PSL2 OD (244.5~457)x(12.7~38.1) mm |
3650 |
|
Shell |
NYHAMNA |
X52/GR6/X52 PSL2 OD (219~609)x(12.7~65) mm |
968 |
|
SBM |
SAXI BATUQUE |
X52/X65 PSL2 OD (219~660)x(25.4~70) mm |
1100 |
|
Exxon Mobil |
Oil Field Chayvo |
X60PSL2/GR.6 OD(273.1~609.6)x(15.09~76.2) |
310 |
|
Dalian Shipping Building/ZPMC |
Leg bracing pipe |
X52~X80 PSL2 OD (159~955) x(10~51)mm |
7050 |
|
PETROBRAS |
PMXL1 MEXILHAO |
X52/X60/X65 PSL2 OD (219~762)x(18.3~69.85)mm |
850 |
The Piercing and rolling technology of Chengde possesses a number of patents in designing and manufacturing the equipment, and has improved in lots of areas targeting better performance and efficiency, which has distinguished itself from the peers.
Advantages of our pipes
1 Uniform mechanical properties and dimensions in longitudinal& transversal directions and better surface condition
2 Minimum Order Quantity (MOQ) as low as ONE piece AND Huge size scope to accommodate the project requirements (8"~48``).
3 Competitive price and shorter delivery, Superior international standard quality.
4 30 years experience and approvals with Major EPCs/OEMs/Clients in the supplier chain.
Line Pipe,Api 5L Pipe,X52 Pipe,X65 Pipe
YANGZHOU CHENGDE STEEL PIPE CO.,LTD , https://www.chengdepipe.com