All Outputs (3)

Nonisothermal viscous sintering of volcanic ash (2014)
Journal Article
Wadsworth, F. B., Vasseur, J., von Aulock, F. W., Hess, K., Scheu, B., Lavallée, Y., & Dingwell, D. B. (2014). Nonisothermal viscous sintering of volcanic ash. Journal of Geophysical Research. Solid Earth, 119(12), 8792-8804. https://doi.org/10.1002/2014jb011453

Volcanic ash is often deposited in a hot state. Volcanic ash containing glass, deposited above the glass transition interval, has the potential to sinter viscously both to itself (particle‐particle) and to exposed surfaces. Here we constrain the kine... Read More about Nonisothermal viscous sintering of volcanic ash.

Fusion characteristics of volcanic ash relevant to aviation hazards (2014)
Journal Article
Song, W., Hess, K., Damby, D. E., Wadsworth, F. B., Lavallée, Y., Cimarelli, C., & Dingwell, D. B. (2014). Fusion characteristics of volcanic ash relevant to aviation hazards. Geophysical Research Letters, 41(7), 2326-2333. https://doi.org/10.1002/2013gl059182

The fusion dynamics of volcanic ash strongly impacts deposition in hot parts of jet engines. In this study, we investigate the sintering behavior of volcanic ash using natural ash of intermediate composition, erupted in 2012 at Santiaguito Volcano, G... Read More about Fusion characteristics of volcanic ash relevant to aviation hazards.

The thermal stability of Eyjafjallajökull ash versus turbine ingestion test sands (2014)
Journal Article
Kueppers, U., Cimarelli, C., Hess, K., Taddeucci, J., Wadsworth, F. B., & Dingwell, D. B. (2014). The thermal stability of Eyjafjallajökull ash versus turbine ingestion test sands. Journal of Applied Volcanology, 3(1), Article 4. https://doi.org/10.1186/2191-5040-3-4

The 2010 eruption of Eyjafjallajökull (Iceland) and the 2011 eruptions of Grimsvötn (Iceland), Cordon Caulle (Chile) and Nabro (Ethiopia) have drastically heightened the level of awareness in the general population of how volcanic activity can affect... Read More about The thermal stability of Eyjafjallajökull ash versus turbine ingestion test sands.