scholarly journals Replantation of the Condylar Shoot of Fractured Temporomandular Joint of the Articular Head by TiNi-based Materials

2017 ◽  
Vol 2 (1) ◽  
pp. 366
Author(s):  
A.T. Karnaukhov ◽  
I.G. Alyoshkin ◽  
V.A. Karnaukhov

The offered way of restoration of anatomic integrity of the articular head and of the condylar shoot of the temporomandibular joint by the way of modeling of replant at using materials of nickelid titanium alloy (TiNi) with the shape memory allows to conclude about the favorable results of rehabilitation of patients with fragmentary fractures of the articular head of the temporomandibular joint in the remote terms of observation of 8 years.

2017 ◽  
Vol 2 (1) ◽  
pp. 302
Author(s):  
G.Ts Dambaev ◽  
V.E. Gunther ◽  
E.A. Avdoshina ◽  
O.A. Fatushina ◽  
M.M. Solovyov ◽  
...  

The usefulness of the anastomotic device for the valve compression anastomoses formation among animals was evaluated. The implant is made of the nickelid titanium alloy (TiNi) in the form of two rounds of the TiNi wire which ends are unbent to the opposite sides. In the area of the unbent rounds the compression isn't carried out, the tissue isn't squeezed. And further there is a formation of the valve. 26antirefluxbiliodigestive compression anastomoses on the small bowel are created during the experiment. They include 13 choledochojejunostomy and 13 cholecystojejunostomy. We studied the terms of the compression devices failure, the mechanical and biological durability of these anastomoses, the primary permeability of anastomoses and carried out the microscopic examination of the compression suture. No complications connected with the use of the compression device were noted. We proved that all the valve compression anastomoses created with using the TiNi shape-memory implant are mechanically and biologically tight. The compression devices eliminated from the zones of anastomoses on the 7th-8th day after the surgery in all cases. The microscopic examination showed the insignificant development of sclerosis in the compression zone and full adaptation of all organ layers. The created valve reduced the reflux of intestinal contents that lessened the probability of development of acute and chronic cholangitis in the postoperative period. The use of the TiNi implant allows to carry out the operation twice quicker. Such anastomosis has high physical durability and small bacteriological permeability.The new way of the formation of valve biliodigestive compression anastomoses allows to create stronger and more reliable anastomoses and prevent the development of typical complications.


Author(s):  
Namrata Gangil ◽  
Arshad Noor Siddiquee ◽  
Sameera Mufazzal ◽  
SM Muzakkir ◽  
Sachin Maheshwari

Shape memory based high performance nickel-titanium alloy particles were embedded by friction stir processing in graded concentration on the surface of light weight commercially pure magnesium cast plates. The novel functionally graded material so developed was analyzed for microhardness evolution and vibration damping effect. The nickel-titanium alloy particles were filled in a 2.5 wide × 3 mm deep slot and embedded on the surface by friction stir processing. A shallower slot 2.5 wide × 1.5 mm deep was milled over the previously embedded surface in which nickel-titanium alloy powder was again filled and embedded on the surface by second pass friction stir processing. This sequence of pass created the graded variation in nickel-titanium alloy concentration. The so fabricated functionally graded material was cut out from the plate and it was hot-forged to 2/3 thickness and subsequently quenched. The microstructural examination confirmed homogeneous dispersion of nickel-titanium alloy particles and clear interface between high and low concentration regions. The microhardness confirmed a uniform graded variation in hardness. The vibration damping tests confirm considerable improvement in the damping capacity of the fabricated functionally graded material.


2014 ◽  
Vol 22 (8) ◽  
pp. 2075-2080 ◽  
Author(s):  
陈玉华 CHEN Yu-hua ◽  
戈军委 GE Jun-wei ◽  
刘奋成 LIU Fen-cheng ◽  
柯黎明 KE Li-ming

2009 ◽  
Vol 30 (2) ◽  
pp. 314-318 ◽  
Author(s):  
Jin-Feng Li ◽  
Zi-Qiao Zheng ◽  
Xi-Wu Li ◽  
Zhuo-Wei Peng

2010 ◽  
Vol 61 (5) ◽  
pp. 535-541 ◽  
Author(s):  
Liqiang Wang ◽  
Weijie Lu ◽  
Jining Qin ◽  
Fan Zhang ◽  
Di Zhang

1996 ◽  
Author(s):  
A. Peter Jardine ◽  
Jayanth N. Kudva ◽  
Christopher A. Martin ◽  
Kari Appa

1987 ◽  
Vol 24 (03) ◽  
pp. 226-236
Author(s):  
William Honeywell

Heat recoverable couplings (HRC's) have been used to join pipe on U.S. Navy ships since 1978. They are designed to meet demanding performance requirements and have been extensively tested. HRC's are manufactured from a nickel-titanium alloy called Tinel® and their design centers around a property of this material called "shape memory." The design of the couplings, their use history, and the function of shape memory are reviewed. The test performance of HRC's is then discussed and compared with conventional pipe joining techniques. They are shown to provide a higher overall reliability than either braze joints or socket welds.


Proceedings ◽  
2020 ◽  
Vol 38 (1) ◽  
pp. 15
Author(s):  
Andrade ◽  
Soares ◽  
Nobrega ◽  
Hilário ◽  
Santos

This paper presents a characterization processes study of metallic alloys, more specifically the shape memory alloys (SMA) composed by Nickel and Titanium (NiTinol). Two different wire suppliers were studied, starting with metallographic analysis until observe the contours of the grain wires. Differential scanning calorimetry (DSC) test was also performed to obtain phase transformation temperatures of the NiTinol alloys. Finally, after several tensile tests, some results were obtained for stresses, strains, elasticity modules and maximum rupture deformation.


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