⚗ Material Sciences

nitride dry etching

I have a 400 nm thick TiN/GaN multilayer film on a Al2O3 substrate and i want to do a cross-plane electrical measuremen...

1 comments posted 20yrs

posted by vijay.rawat

1 comments posted 20yrs posted by vijay.rawat

Structural Material for Prototype Machine

I'm designing a prototype machine which probably will be between countertop-size and a freestanding machine. If the lat...

1 comments posted 20yrs

posted by nospam

1 comments posted 20yrs posted by nospam

Thermal expansion question

Wood has a very low thermal expansion coefficient. But what about the coefficient of charcoal made from wood? Is is high...

0 comments posted 20yrs

posted by thymaridas

0 comments posted 20yrs posted by thymaridas

where to find stress-strain curve for epoxy?

I am working the numerical modeling on polymer material. Could anyone tell you where can I find the stress-strain curve...

1 comments posted 20yrs

posted by jianghanus

1 comments posted 20yrs posted by jianghanus

Diamond cutting

Dear friends I have recently heard that it is not appropriate to cut steel with diamond wheels, because the high wear o...

0 comments posted 20yrs

posted by ricarrios

0 comments posted 20yrs posted by ricarrios

Usual water filter

For the moment, water filters in the market mainly include the following categories: Micro filtration filter: Such as g...

0 comments posted 20yrs

posted by rootad

0 comments posted 20yrs posted by rootad

Heavy Liquids

Any low or nontoxic low cost liquids that have a density above 3 gm/cc? Bret Cahill

9 comments posted 20yrs

posted by BretCahill

9 comments posted 20yrs posted by BretCahill

Water is gritty.

http://www.reactivereports.com/50/50_2.html

14 comments posted 20yrs

posted by lysdexia

14 comments posted 20yrs posted by lysdexia

Question - Lifespan of digital media

I have a question for physicists/material scientists: As we know, digital media eventually degrade until they're unread...

2 comments posted 20yrs

posted by foo

2 comments posted 20yrs posted by foo

Alternative to Overmolding?

Hello all, I am lead development designer for a new cosmetics packaging (compacts, bottles lipsticks etc)for a very hig...

0 comments posted 20yrs

posted by scorsi

0 comments posted 20yrs posted by scorsi

EC-funded Research Visits: Application Deadline 28/02/2006

HPC-EUROPA deadline for applications: 28 February 2006 ---------------------------------------------------- Are you a s...

0 comments posted 20yrs

posted by europa

0 comments posted 20yrs posted by europa

Precrack preparation problem on WC/Co CT sample

Hi All Can someone help mi find any method to prepare SHARP precrack on CT sample of Wc/Co ? I need to gain R-curve but...

2 comments posted 20yrs

posted by marcink

2 comments posted 20yrs posted by marcink

Micro nuke, nuclear "battery".

What is this "nuclear battery, and how does it work? http://www.alaskajournal.com/stories/122604/loc_20041226003.shtml -...

31 comments posted 20yrs

posted by jtnospam

31 comments posted 20yrs posted by jtnospam

Need advice on creating a 3x3x1 inch, 5-sided open box with low thermal expansion.

Current box is machined aluminum and meets all of the specifications below but expands to much for the temp range. The...

4 comments posted 20yrs

posted by Grebenc

4 comments posted 20yrs posted by Grebenc

Orange pigment

Dear all, I'm looking for an orange pigment for an aerosol formulation. Binder : acrylic. Solvent : ketonics and acetat...

2 comments posted 20yrs

posted by delfau.nicolas

2 comments posted 20yrs posted by delfau.nicolas