Formation and behaviour of low-temperature melting peak of quenched and annealed isotactic polypropylene

2002 ◽  
Vol 51 (2) ◽  
pp. 111-116 ◽  
Author(s):  
Du??ke Dudi? ◽  
Du??an Kostoski ◽  
Vladimir Djokovi? ◽  
Miroslav D Drami?anin
Keyword(s):  
Low Temperature ◽  
Isotactic Polypropylene ◽  
Melting Peak ◽  
Temperature Melting

Dielectric and Sintering Properties of the Doping CaO-B2O3-SiO2 System Low Temperature Co-Fired Ceramics

2010 ◽  
Vol 434-435 ◽  
pp. 371-375
Author(s):  
Ming He ◽  
Shu Ren Zhang ◽  
Xiao Hua Zhou ◽  
Jian Geng Hu ◽  
Ting Zhang ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Phase Composition ◽  
Low Temperature ◽  
Sintered Density ◽  
Sol Gel ◽  
Calcium Borate ◽  
Sio2 System ◽  
Sintering Properties ◽  
Calcium Silicates ◽  
Temperature Melting

. A doping CaO-B2O3-SiO2 system low temperature co-fired ceramics (LTCC) was prepared with a mixture of high temperature melting glass and sol-gel glass for different ratio. The effects of sol-gel glass content on the microstructure, crystalline phases, sintering properties and dielectric properties of CaO-B2O3-SiO2 system were investigated at 850°C. The results show that the samples with sol-gel glass doping had little change in phase composition, but contained more calcium silicates, and less calcium borate. As the amount of sol-gel glass increased, the shrinkage improved, the sintered density slightly decreased, the dielectric constant (εr) reduced, and the dielectric loss (tgδ) decreased. When the amount of sol-gel glass was 14.5wt%, εr and tgδ of the doping sample were 5.80, 4.6×10-5 (at 1 MHz), respectively. Moreover, the doping system had a good matching ability with gold slurry and Au-Pt-Pd slurry.

Combined method of copper electroplating deposition and low temperature melting for damascene technology

2006 ◽  
Author(s):  
E. N. Redichev ◽  
D. G. Gromov ◽  
S. A. Gavrilov ◽  
A. I. Mochalov ◽  
R. M. Ammosov
Keyword(s):  
Low Temperature ◽  
Combined Method ◽  
Copper Electroplating ◽  
Temperature Melting

Steel Tube Bending with a Filling Medium of Fiber-Reinforced Ice (FRI)

2016 ◽  
Vol 703 ◽  
pp. 11-16 ◽  
Author(s):  
Takahiro Ohashi
Keyword(s):  
Low Temperature ◽  
Cross Section ◽  
Steel Tube ◽  
Filling Material ◽  
Fiber Reinforced ◽  
Compression Tests ◽  
Tube Bending ◽  
Steel Tubes ◽  
Crushing Strength ◽  
Temperature Melting

This paper proposes a new filling material, fiber-reinforced ice (FRI), for tube bending. In tube bending, lead and low temperature melting alloys have conventionally been utilized as the filling medium to prevent defects and to alleviate flattening of the tube’s cross section. However, these alloys are usually harmful to the environment (e.g., Pb, Bi-Pb-Sn-In, or Pb-Cd system alloys) or are expensive (e.g., In-Sn system alloys). In this study, the author utilized ice reinforced with the fiber of wastepaper for 3-point bending of JIS G 3452 SGP 32A steel tubes. Compression tests were conducted to analyze whether these tubes have crushing strength comparable to that of conventional fillings and sufficient ductility in low-speed deformation. The filling medium with more fiber effectively yielded less flattening.

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