Depending on the equipment you have, you can use photoacoustic spectrometry. That is irradiation of a sample using pulse laser beam. The heat produced as a result of relaxation processes in the material is conducted through the sample in form of a mechanical wave (conductivity of the material is in direct link with the wave characteristics) and it is detected as a sound in a surrounding medium. I am sure you can find more detailed explanation in papers published in for example Material science or Physical letters B.
Thank you ,very much for your answer but we have a limitation in getting like instrument because of or country .So if there is another and simple process I can do to find the thermal conductivity I will be great full for you. Again thank you
This technique does not require any special equipment that is expensive. You can use a simple laser that is used for pointers (that small device that you can link keys on and it is used when you have, for example, a presentation and you need to point to something on the slide, hope you understand me). To achieve pulsed emission, you can improvise a chopper made of a ventilator from the processor cooler in the computer, and the most expensive peace is a microphone that needs to be very sensitive and small. The microphone is then linked by couple of wires to an osciloscope or a computer. There are some papers on this subject also.
Dear Jelena,
I'm very intrested in those aditional papers; please do post them;
Please do reply anyway!
Thank you!
- Badges
- Science topic
- Similar topics
- Chemistry
- Nanotechnology
- Nanostructures
- Thin Films