Rigaku is a global leader in analytical and industrial instrumentation technology. Rigaku’s product line in thermal analysis dates back to the late 1950’s. Rigaku developed the world’s first thermogravimetry (TGA) system based on the differential thermobalance principle in 1981. The company hasn’t stopped innovating since – continuing to provide leadership and drive development in the field of thermal analysis with over 60 years of experience.
While offering a high-sensitivity thermal analysis portfolio with broad dynamic range, Rigaku is also a specialist in cutting-edge hyphenated instrumentation. Some areas of specialization include; sample-controlled thermal analysis, humidity-controlled thermal analysis, and sample observation (with video) thermal analysis.
Differential scanning calorimetry (DSC) quantifies the energy changes in reactions such as melting, transition, crystallization and glass transition temperature and is mainly used for research and development; and quality control in the fields of polymer, pharmaceutical.
The high-sensitivity type DSCvesta has several available options, such as a refrigerated cooling system, an automatic sample changer, sample observation, depending on the objective of the measurement.
TG-DTA is a hyphenated technology generally referred to as simultaneous thermal analysis (STA), an analytical technique that simultaneously measures thermogravimetry (TG) and differential thermal analysis (DTA). Rigaku’s TG-DTA adopts the horizontal differential triple-coil balance that cancels various fluctuations causing TG drift to achieve highly accurate weight change measurements.
Also, the sample-controlled TG (SCTG) method is equipped as a standard. Sample observation TG-DTA can perform measurements while capturing visual images of the sample with a CCD camera. Thru these images, we can observe shape changes or color changes in the sample associated with a reaction. These images are helpful in interpreting TG-DTA results.
TMA is a technique in which a non-oscillatory load is applied such as in compression, tension or bending, measuring the changes in the sample shape when the sample is heated or cooled. The TMA method includes measurement modes such as compression loading method, tensile loading method, penetration method based on the sample shape and the objective of the measurement. TMA is widely used to measure the thermal expansion ratio and softening temperature of a sample.
Rigaku’s TMA adopts the differential expansion principle that cancels the thermal expansion or shrinkage generated from the detection mechanism itself. In addition to constant load, the load control can be set to two types: constant rate loading mode and sine-wave cyclic loading mode. Sample controlled TMA (SCTMA), where the shrinkage rate controls the temperature, can be installed as an option that is effective for the simulation of sintering in ceramics, production of sintered materials with suppressed grain growth.
Differential scanning calorimetry (DSC) quantifies the energy changes in reactions such as melting, transition, crystallization and glass transition temperature, and is mainly used for research and development; and quality control in the fields of polymer, pharmaceutical.
DSC8271 is a high-temperature type DSC with a maximum temperature of 1,500°C. In cases where high-temperature measurement is necessary—such as in ceramics and glass materials; as well as in measurements where multiphase phenomena can be obtained which cannot be measured by a standard DSC—the high-temperature type DSC is more versatile and applied to a wide range of fields.
Rigaku’s Sample Observation technology provides immediate visual confirmation of what is happening with a sample through a heating or cooling cycle with synchronized recorded video observation of the sample. This is particularly helpful for confirming melting and/or crystallization events in testing novel materials. Changes in shape and color can easily be observed. This is invaluable when trying to differentiate endothermic heat events, such as a melt vs a decomposition, or exothermic heat events, such as a crystal-crystal phase change vs a decomposition. This innovative capability helps researchers to understand more about specific events that could be mistakenly interpreted as noise without visual confirmation.
Since its inception in 1951, Rigaku has been at the forefront of analytical and industrial instrumentation technology. Today, with hundreds of major innovations to their credit, the Rigaku group of companies are world leaders in the fields of general X-ray diffraction, thin film analysis, X-ray fluorescence spectrometry, small angle X-ray scattering, protein and small molecule X-ray crystallography, Raman spectroscopy, X-ray optics, semiconductor metrology, X-ray sources, computed tomography, nondestructive testing and thermal analysis.
In thermal analysis, since launching the Thermoflex line in 1957 and developing the world’s first thermogravimetry based on the differential thermobalance principle in 1981, Rigaku have continually developed and marketed thermal analyzers for more than 60 years, giving us a long, rich history of innovation in the field. Alongside general purpose thermal analysis, Rigaku is constantly developing cutting edge hyphenated instruments, sample controlled thermal analysis, humidity-controlled thermal analysis and sample observation thermal analysis, providing constantly improving solutions to match the needs of our customers.