Tue, 07 Sep 2010 18:32:32 -0700 http://www.materialsforum.com/ Lussumo Vanilla 1.0.3 http://www.materialsforum.com/discussion/154/ http://www.materialsforum.com/discussion/154/ Sat, 17 Oct 2009 01:23:22 -0700 j_skade http://www.materialsforum.com/discussion/151/ http://www.materialsforum.com/discussion/151/ Fri, 09 Oct 2009 00:37:36 -0700 klemke Maybe this forum can help. I am looking for a source of non-magnetizable steel, preferably I-beams, or any other metal/alloy that could be
used to assemble a weight distribution structure for a 2.5t mass spec. magnet. Information regarding sources and approx. cost for non-magnetizable steel or any other alloy that could be used would be much appreciated.

Thanks
K.Lemke]]> http://www.materialsforum.com/discussion/150/ http://www.materialsforum.com/discussion/150/ Wed, 07 Oct 2009 06:13:02 -0700 barrosis http://www.materialsforum.com/discussion/147/ http://www.materialsforum.com/discussion/147/ Mon, 07 Sep 2009 00:41:57 -0700 catherineq Anyone wants to know more knowledge about physical testing equipment, please contact with me. I'm always ready to answer your questions.
Since i'm not so often to visit this site, please send your questions to my email address:ca1028@163.com or you can contact with my MSN catherine_hmw@hotmail.com]]> http://www.materialsforum.com/discussion/133/ http://www.materialsforum.com/discussion/133/ Tue, 07 Jul 2009 09:55:30 -0700 JPablo
I am new on this, I am making a simulation of a microbattery which use Ni(OH)2, Nickel(II) Hydorxide, as the cathode.

I am having problems to find the information about the diffusion coeficient and the electrical conductivity of Ni(OH)2.

I try in the CRC Handbook of Chemistry and Physics, the Perry's chemical enginnering handbook and others materials books, but I can´t find the information.

Please somebody could help whith this, some other source, or paper In which I could find this information.

Thanks and Regards.]]> http://www.materialsforum.com/discussion/131/ http://www.materialsforum.com/discussion/131/ Fri, 26 Jun 2009 04:55:54 -0700 Simon Calvin http://www.materialsforum.com/discussion/130/ http://www.materialsforum.com/discussion/130/ Mon, 22 Jun 2009 23:01:14 -0700 zaheer07
I belong to a packaging company. Currently we are facing problems of bond strengths in MCPP laminates. There is always behavior of Metal Transfer in these laminates. Whereas MOPP laminates give good bond strengths.

Please tell me is that a world wide problem with MCPP or only we are facing this problem.

Please also tell me that is there any method through which we can measure the metal adhesion of these metalized films. We used to do Scotch Tape test but all films pass this criteria.

Regards
Zaheer
+92-332-7057098]]> http://www.materialsforum.com/discussion/128/ http://www.materialsforum.com/discussion/128/ Mon, 01 Jun 2009 09:27:20 -0700 titanengg
Our trading division deals in Supply of Titanium materials like titanium Rods, Bars, Blocks, Plates, Sheets, Foils, Fasteners like Titanium screws, bolts to the various sectors like aerospace, metal finishing, automotive, biomedical, chemical processing, power plants, marine, and tooling industries.


Our experience in precision metal machining helps us to understand your requirements much better, so when you are looking for Quality and Experience with competitive rates, Titan Engineering is your first choice for your Titanium metal and alloy needs. We understand the importance of fast answers and quick delivery. At Titan Engineering we strive to answer your questions instantaneously and deliver your product as quickly as possible. At Titan Engineering, Every order is expedited with utmost care, so that our customers meet their ever decreasing leadtimes. Our mission is to facilitate every aspect of our business so that the customers satisfied with our Quality, Delivery and Charges.


At Titan Engineering, we strive for ultimate customer satisfaction. We work with trusted network of Titanium Mills globally, in order to give our customers the best quality and price with fast delivery for every order.


We welcome the opportunity of quoting on your needs, whether your requirement is large or small.

Visit us at: http://www.titanengg.com.sg]]> http://www.materialsforum.com/discussion/124/ http://www.materialsforum.com/discussion/124/ Mon, 11 May 2009 09:13:32 -0700 onlyformaterial http://www.materialsforum.com/discussion/123/ http://www.materialsforum.com/discussion/123/ Fri, 01 May 2009 12:30:09 -0700 DanBrunermer Thanks, Dan]]> http://www.materialsforum.com/discussion/122/ http://www.materialsforum.com/discussion/122/ Thu, 30 Apr 2009 07:28:14 -0700 phill cocker http://www.materialsforum.com/discussion/119/ http://www.materialsforum.com/discussion/119/ Sun, 29 Mar 2009 19:45:03 -0700 kaiernano
Our company is the leading manufacturer of nano carbide and nano nitride particles. We have our own proprietary technology of production-----plasma arc vapor synthesis method. We use H2 to react SiCl4, then we get nano SILICON which is single- phase. Our product SILICON has four features of high purity, small particle, uniform diameter distribution, high surface activity, large specific surface area. At present in the world, we are the only one which realizes the industrial production of SILICON below 100 nm.
The specific parameter of our product SILICON is as followings:
Product Descriptions:
Chemical formula: Si
Purity: 99.9%
[O] <0.1%
APS: 50 nm
SSA: 80 m2 /g
Bulk density: 0.08 g /cm3
Form: spherical
Color: Brown yellow
Shelf time: 24 months
Crystal types: Amorphism and crystalloid

The decrease of the size of silicon particle (below 100nm) could effectively decrease the expansion resulting from silicon absorbing the lithium ion, reduce the loss of silicon, and improve the recycle capacity. With the vapor method, the nano silicon particle has higher surface activity, easily to match with many kinds of material to form composite materials. As that it is more flexible in applications.
The way now in China to apply silicon particle in the negative material of lithium battery is : coat the surface of silicon with carbon material, then form Si-C composite material. As the matrix, the carbon not only could be embedded with Lithium, but also the transmission channel of electron and atom. Si-C composite material, the carbon matrix is unformly embedded in nano SILICON., and the crystal does not change before and after forming the composite material. Nano Si-C composite material not only has high recycle and stability character as the same with the carbon material, which could prevent the silicon material from activity loss of lithium embedded due to volume expansion and migration, but also has the feature of high specific capacity as the same with Si material.]]> http://www.materialsforum.com/discussion/117/ http://www.materialsforum.com/discussion/117/ Sun, 29 Mar 2009 19:39:52 -0700 kaiernano
Energy-saving mechanism of nano TiN:
Nano TiN have transition of electron as absorbing infrared, transit from high energy level to low energy level, then release much energy. When TiN is heated fully mixed with metal materials, because nano TiN releases energy interior and improve the temperature inside of the furnace, largly improve the smelt rate of metal, and improve the efficiency of metal smelting. Then save the energy for a wide range. Proof by emperiment: It reduces to 4 hours from 6 hours when smelting 750 KGS steel in intermediate frequency inductive stove. This technology is mainly used to improve smelting rate and low down the loss of steel making.

Grain refinement mechanism of nano TiN:
Nano TiN comes into lattice to make alloy nucleation small to refine alloy grain., then improve the performance of alloy. The thinner of grain, the more of crystal grain boundary unit volume. Because atomic array of crystal grain boundary is more disorder than atomic array of internal grain, the dislocation is high. As that, the crystal grain boundary snarls with slip dislocation normally caused by grain, then it is not easy to keep slipping across the boundary, the deformation resistance is increased, and it performances the improvement of intensity(part of mechanism).
Nano alloy breaks the law of usual production of alloy, which is the conculsion of hardness improvement necessiarly with reduction of toughness. For small sized grain, the high surface activity of nano TiN could make grain combine rapidly, then make the size of grian larger and low the driving force as the combination of grains. And finally it forms the whiske structure inside the alloy, then improve the hardness and toughness of alloy.
From the above, nano TiN applied in smelting steel, could not only save energy, but also improve every mechanical property of steel. This technology are widly used in metal smelting, ceramic sintering, powder metallurgy. And it could help such industies save much more energy, and improve the quality.]]> http://www.materialsforum.com/discussion/114/ http://www.materialsforum.com/discussion/114/ Mon, 16 Mar 2009 08:29:19 -0700 susan-ti
We do proud of our high quality with ISO and reasonable price.

If you has relevant inquiries, pleas feel free to contact me. I will do my utmost to satisfy you.

Kind regards,

Susan Sun
MSN:sututu75@hotmail.com
SKYPE:sututu75
Mobile: +86 13891866727]]> http://www.materialsforum.com/discussion/111/ http://www.materialsforum.com/discussion/111/ Fri, 27 Feb 2009 20:19:25 -0800 baihuoshi http://www.materialsforum.com/discussion/105/ http://www.materialsforum.com/discussion/105/ Sat, 24 Jan 2009 07:59:09 -0800 c.beckenham http://www.materialsforum.com/discussion/110/ http://www.materialsforum.com/discussion/110/ Tue, 17 Feb 2009 01:27:50 -0800 faizol82
I have one plate SA 516 Gr. 70N + SS 316L Clad (Explosion Bonding) to form as a head. After formed, percent of elongation is more than 5% and as per ASME CODE UCS-79, stress relief is required, but our client request to do normalized with temperature 900⁰C to 960⁰C. So, with this temperature, Clad can be stand or not. Could anyone advice me regarding this matter.

Kindly,prompt respond are appreciated.

Thank you.]]> http://www.materialsforum.com/discussion/108/ http://www.materialsforum.com/discussion/108/ Tue, 03 Feb 2009 05:04:31 -0800 p.bakhtiari http://www.materialsforum.com/discussion/102/ http://www.materialsforum.com/discussion/102/ Mon, 29 Dec 2008 01:29:12 -0800 jsean21 thank you. ive attached the images below:

Thank you, if u have any idea of how they may be manufactured please add that

Thanks you]]> http://www.materialsforum.com/discussion/100/ http://www.materialsforum.com/discussion/100/ Mon, 10 Nov 2008 01:09:56 -0800 ewrdge 1.Seamless steel pipe for general use: ASTM A 53 GR.B,
Steel Grade: SA53B and specication O.D:1/2"-28",21.34 -711.2mm W.T: SCH10S- SCH120
2.Seamless steel pipe for high temperature:ASTM A 106 GR.B,
Steel Grade: SA106B and specication O.D:1/2"-28",21.34 -711.2mm W.T: SCH10S- SCH120;
3.Seamless steel pipe DIN2448/1629,DIN17175, German standard,
Steel Grade: st37,st42,st52,st35.8-st45.8/1, specication O.D: 1/2"-28",21.34-711.2mm W.T: SCH10S- SCH120;Terms for pipe:
Packaging:In bundles sea worthy packing,painting,printing Etc.
Delivery time:20-30 days after receive deposit payment.
Delivery terms:FOB/CFR/CIF all available. Payment terms:To be agreed on by both party.
Add:Cangzhou City ,Hebei Province,China
Tel:+86-0317-7920231
Fax:+86-0317-7920220
Website:http://www.wjpipe.com/jje.html
E-mail:ewrdge@yahoo.com.cn
MSN:ewrdge1984@hotmail.comYours faithfully,Steve.]]> http://www.materialsforum.com/discussion/97/ http://www.materialsforum.com/discussion/97/ Fri, 17 Oct 2008 07:02:47 -0700 Babu
Let me know that, What is nature of the stress in fibers and matrix

Thanks]]> http://www.materialsforum.com/discussion/92/ http://www.materialsforum.com/discussion/92/ Wed, 01 Oct 2008 21:46:44 -0700 HornMaker
I am interested in making a musical horn called the Shofar and I need to straighten the tip of the Ram's horn and then shape the tip into the specifications of a trumpet mouthpiece.

Could someone please inform how to work with this material, what tools are needed and what processes are used to soften this material, etc?

Thanks for any suggestions.

Liad]]> http://www.materialsforum.com/discussion/61/ http://www.materialsforum.com/discussion/61/ Fri, 16 Nov 2007 07:28:40 -0800 kennymcmack 1. From a materials viewpoint, are there any advantages/disadvantages for using a bronze impeller in lox?
2. Is the current setup a good configuration with the aluminum case and stainless impeller in a lox pump?
3. Are there any other concerns with anything related to this situation?

Any info is great. Thanks.]]> http://www.materialsforum.com/discussion/58/ http://www.materialsforum.com/discussion/58/ Wed, 24 Oct 2007 05:47:48 -0700 amando75
http://www.stamfordscientific.com/caddrawings.html]]> http://www.materialsforum.com/discussion/57/ http://www.materialsforum.com/discussion/57/ Tue, 23 Oct 2007 06:44:14 -0700 silver13 coming years.

http://www.stamfordscientific.com/materials.html]]> http://www.materialsforum.com/discussion/56/ http://www.materialsforum.com/discussion/56/ Mon, 22 Oct 2007 04:12:04 -0700 charles21
http://www.stamfordscientific.com/designyourplant.html]]> http://www.materialsforum.com/discussion/19/ http://www.materialsforum.com/discussion/19/ Sat, 20 Jan 2007 19:06:29 -0800 matco
While it is a serious error not to start any analysis at the macro or visible level, it's just in the nature of things that very soon we almost always begin to want to know more about the micro-level. There are two kinds of "modern" microscopies: those that use light to form the image and those that use electrons. Light microscopes have a history longer than 300 years, but they continue to improve steadily. Lens design has virtually eliminated serious aberrations, which for most of the instrument's history had kept their performance less than satisfactory. There are now quite literally dozens of important and useful ways to obtain light microscope images, depending on what properties you are interested in investigating.

The primary introductory tool is stereo light microscopy, generally used at magnifications between 10X and 45X, taking you from the realm of the familiar into the unknown. Things look very different at 45X than they do with the eye.

At higher magnifications reflected light, often called "metallurgical" microscopy, is the most common technique. For this a sample is polished to create a perfectly planar cross section through it. Frequently important information can be obtained directly from this approach, but often it is valuable also to etch the sample surface chemically, bringing out substructures that help to explain materials properties, for example, solder and weld joints or heat treatment effects. Direct magnifications to 1000X are common using this technique. Since the depth of field of the microscope lenses is very small at these magnifications, samples which are not polished usually don't yield much information. It's mostly out of focus.

This depth of field problem was first pushed back in the 1960's when scanning electron microscopy (SEM) came on the scene. This approach, using electrons instead of light to illuminate the sample and form the image, virtually eliminated the depth of field problem, producing images which seemed interpretable almost intuitively. The information content went up exponentially. Suddenly, with very little sample preparation, it became possible to see amazing details of fracture surfaces, crystal growth phenomena, even biological samples such as wood or the favorite, insect eyes! Magnifications up to 20,000X became commonplace.

The key development that made SEM even more useful was the parallel development of energy-dispersive x-ray spectroscopy, a versatile tool for elemental chemical analysis. Now you could obtain both morphological and chemical information at the same time. Although serious quantitative analysis must still be done on polished samples rather than on rough surfaces, qualitative identification of composition can be done now on virtually anything. The subject of sensitivity limits is complex, but point analyses can detect remarkably small amounts of material. The beam actually penetrates several micrometers into most materials, so the activated volume contributing to a spectrum is not truly at the sample surface. But even so, given an understanding of the limitations, a remarkably good job can be done with EDS, even in surface analysis.

One of the most interesting new techniques for SEM work is that many new microscopes can be operated at deliberately poor vacuums, with water vapor or some other gas in the chamber eliminating the need for coating the sample to provide conductivity. While the imaging results may not quite equal those of high-vacuum scopes, the simplification of sample preparation is often worth the slightly lower quality. One problem in the past was that wet samples would collapse when dried in the microscope vacuum. That needn't happen now.]]> http://www.materialsforum.com/discussion/55/ http://www.materialsforum.com/discussion/55/ Fri, 19 Oct 2007 00:23:31 -0700 Nazario77
http://www.stamfordscientific.com/discaccessories.html]]> http://www.materialsforum.com/discussion/45/ http://www.materialsforum.com/discussion/45/ Mon, 13 Aug 2007 14:14:14 -0700 dpatton http://www.materialsforum.com/discussion/39/ http://www.materialsforum.com/discussion/39/ Fri, 30 Mar 2007 11:14:10 -0700 2007grad!