Jurbanite sample

2014-04-01 Thread Marcelo Alves
Dear all, Please, somebody would know to tell me for where I could ask a small sample (~0.5 g) of jurbanite? I will intend to use it a standard in synchrotron-based studies that I will carry out in the Brazilian Synchrotron Light Laboratory. Sorry for using this list for this request, but I have a

Hot stage data inconsistencies

2014-04-01 Thread Hudish, Grant
Greetings Rietvelders, We are currently running experiments on BCZY proton conductors. The nature of the runs require us to heat our samples to 1200C, then ramp down to 800C and collect an Xray pattern every 25C between 800 and 400C. We then cool in 100C increments and collect patterns at 300

Re: Hot stage data inconsistencies

2014-04-01 Thread Leonid Solovyov
>Our current dilemma is that our data collected at 400C and below deviates from >a smooth linear trend, >and this is not expected. In oxide perovskites the oxygen vacancies may be stabilized below the temperature threshold at 400-500C. It can be detected by DSC measurements. **