jagomart
digital resources
picture1_Analysis Ppt 68374 | Tga 2 Item Download 2022-08-28 19-01-19


 153x       Filetype PPTX       File size 0.99 MB       Source: www.rkmmanr.org


File: Analysis Ppt 68374 | Tga 2 Item Download 2022-08-28 19-01-19
thermal analysis thermal gravimetric analysis tga measure change in weight during heating or cooling differential thermal analysis dta they are use for thermal investigation where thermal change can be observed ...

icon picture PPTX Filetype Power Point PPTX | Posted on 28 Aug 2022 | 3 years ago
Partial capture of text on file.
          Thermal Analysis
 • Thermal Gravimetric  Analysis (TGA) -
  Measure change in weight during heating or cooling
 • Differential Thermal Analysis (DTA)-
 They are use for thermal investigation where thermal 
 change can be observed and characterised.
 • Differential Scanning Calorimetry (DSC)-
  Measure heat absorbed or liberated during heating or 
 cooling
 • Thermomechanical  Analysis (TMA)-
  Measure change in dimensions during heating or 
 cooling
       THERMOGAVIMETRIC ANALYSIS
            (TGA)
      GENERAL PRINCIPLES INVOLVED IN
         THERMOGRAVIMETRY
  • PRINCIPLE : Thermogravimetry is a
  technique in which a change in the weight of a
  substance is recorded as a function of temperature or 
  time.
  • Instrument: Instrument used for thermogravimetry is 
  “Thermobalance”.
   Data recorded in form of curve known as ‘Thermogram’.
   Thermogravimetric Analysis (TGA)
   • A technique that permits the continuous weighing 
   of a sample as a function of temperature and/or as 
   a function of time at a desired temperature
      The Various componants of thermobalance
      1) Sample Holder: The shape,size and material of the sample 
          holder have an important effect on the shape of the TG curve.
      2)Recording Balance: It is the most important componant of a 
          thermobalance. It must  fulfill the following requirements.
      •   Its accuracy , reproducibility, sensitivity and capacity should 
          be similar to those of an analytical balance.
      •   It should have rapid response to weight changes.
      •   Simple to operate and versatile.
The words contained in this file might help you see if this file matches what you are looking for:

...Thermal analysis gravimetric tga measure change in weight during heating or cooling differential dta they are use for investigation where can be observed and characterised scanning calorimetry dsc heat absorbed liberated thermomechanical tma dimensions thermogavimetric general principles involved thermogravimetry principle is a technique which the of substance recorded as function temperature time instrument used thermobalance data form curve known thermogram thermogravimetric that permits continuous weighing sample at desired various componants holder shape size material have an important effect on tg recording balance it most componant must fulfill following requirements its accuracy reproducibility sensitivity capacity should similar to those analytical rapid response changes simple operate versatile...

no reviews yet
Please Login to review.