The Magnetic Shape Memory (MSM) eàect in a Ni-Mn-Ga alloy was
discovered in 1996 at MIT by Dr. Kari Ullakko and co-workers
The first MSM alloy showed a strain of 0.2%. Since then, huge
improvements have been achieved in the production process
of MSM alloys as well as in the post-production treatments and
training.
MSM alloys are ferromagnetic materials that produce motion and
force under moderate magnetic fields (typically higher than 0.2 T).
They are single crystalline alloys of Nickel, Manganese and Gallium
and are able to produce 6% strain under more than 2 MPa external
load (see Fig. 3). Frequencies up to lower kilohertz range can be
achieved.
The main properties of commercially available Ni50-Mn28-Ga22 alloys are:
- Typical strain up to 6%
- Blocking stress up to 3.5 MPa
- Magnetic field for maximum strain of about 500 kA/m
- Full strain up to about 2 MPa load
- Work output per unit volume of about 150 kJ/m³
- Energetic eÞciency up to 90%
- Reaction times of about 1 ms (in MSM actuators)
- Hysteresis between stress or magnetic Õeld and strain (material
damping)
- Internal friction
- Magnetic and thermal activation are both possible
- Operating temperatures: -40 °C to 60 °C
- Change in magnetic permeability and electric resistivity during
deformation
About XUNSHI
Suzhou Xunshi New Material Co. Ltd- referred as XUNSHI hereafter,
is a professional manufacturer of high-performance alloy products.
XUNSHI is engaged in supplying high quality and cost-effective
Superalloy, Anti-Corrosion Alloy, Precision Alloy, Special
Stainless Steel and Magnetostrictive Material to customers
worldwide.
Why XUNSHI
· Highly experienced in alloy industry
· Top experts of industry in China
· Advanced technology and process from top famous institutes in
China
· Advanced devices through whole production and inspection process
· Strict quality control system
· Company motto: best service, most value
· Smart sales policy
Service Items of XUNSHI
· Non-standard product research and pre-production
· Fabrication of products
· Cutting, splitting for sheets and plates in stock
· Heat treatment (Solution treatment, aging harden treatment,
anneal, spring temper, quench etc.)
· Surface finish (peeling, gridding, polishing)
· Logistics service
· Customized packing service (also for exporting)
· Import and export (XUNSHI is certificated)
· Document translation
· Hard-to-find material sourcing
Customers of XUNSHI
Customers of XUNSHI are all over China (Taiwan and Hong Kong
included). And we are exporting to USA, Canada, Italy, UK, Poland,
Greece, Russia, Turkey, Iran, Israel, South Africa, South Korea,
North Korea, India, Argentina, and Brazil and so on. Customers from
30+ countries trust us.
Where is XUNSHI
A- XUNSHI is in Huaqiao, Kunshan, 215332 China, which is very
closed to Shanghai.
B- Xunshi is around 80KM from Shanghai Pudong International Airport
(PVG).
C- 20KM from Shanghai Hongqiao Airport
D- 20KM from Shanghai Hongqiao Railway Station
E- You can contact XUNSHI sales for a pickup service.
