Ceramic behavior of ball clay with gadolinium oxide (Gd 2 O 3 ) addition

Hernández, María F.; Conconi, María Susana; Cipollone, Mariano; Herrera, María S.; Rendtorff, Nicolás M.

doi:10.1016/j.clay.2017.06.021

Cited by 18 publications

(12 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The ceramic behavior of gadolinium oxide and samarium oxide-ball clay mixtures, for high macroscopic neutron capture cross section proppants design, has been previously reported by our group (Herrera et al, 2019;Hernández et al, 2017). It was concluded that the incorporation of those rare earth oxides to a possible formulation of a kaolinitic clay-based ceramic proppant would not imply significant changes in the processing route.…”

Section: Accepted Manuscriptsupporting

confidence: 52%

Detectability of smart proppants traced with gadolinium and samarium in the Vaca Muerta formation

Herrera

Ortíz²,

Hryb³

et al. 2019

Journal of Petroleum Science and Engineering

View full text Add to dashboard Cite

show abstract

Section: Accepted Manuscriptsupporting

confidence: 52%

Detectability of smart proppants traced with gadolinium and samarium in the Vaca Muerta formation

Herrera

Ortíz²,

Hryb³

et al. 2019

Journal of Petroleum Science and Engineering

View full text Add to dashboard Cite

show abstract

“…The chosen processing route was the same as the precedent clay-rare earth mixture study [10]. Bauxite-oxide mixtures were obtained by wet ball milling; alumina jar and milling media were employed.…”

Section: Processing: Powder Mixing and Sinteringmentioning

confidence: 99%

“…Finally, a simple comparative mechanical characterization was carried out, evaluating only the optimized materials by diametral compression. This test, also known as "splitting test" or "Brazilian test", has been usually employed in mechanical evaluation due to several advantages: simpler piece preparation, simple geometry and quickness of testing, independent data with regard to surface finish and no edge effects [10,28,29]. In this case, the 15 mm diameter and 5 mm thick disc-shaped samples were diametrically compressed in a universal mechanical testing machine (INSTRON 5985, USA), at a constant strain rate of 0.1 mm/min, with steel plates.…”

Section: Bauxite -Gd 2 O 3 Mixtures Characterizationsmentioning

confidence: 99%

“…After the well stimulation process, it is highly desirable to know the fracture geometry and proppants distribution in it. Recently, methods to identify proppants in induced formation fractures have been proposed (US Patent 8,234,072 B2, US 8,648,309) and applied [6][7][8][9] [10][11][12][13][14][15]. These methods require the incorporation of a suitable high thermal neutron capture element, such as gadolinium or samarium, into the proppant grain during the ceramic manufacturing process.…”

Section: Introductionmentioning

confidence: 99%

“…This approach in the use of traceable smart proppants requires a better understanding of the ceramic behavior of gadolinium oxide in higher proportions, in order to obtain ceramic design strategies. In a previous article we performed a systematic thermal behavior study of kaolinitic clays mixtures with gadolinium oxide and samarium oxide, due to the same technological interest of these thermochemical processes [10,11]. A systematic formulation-sinteringproperties correlation was carried out.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

High macroscopic neutron capture cross section ceramics based on bauxite and Gd2O3

et al. 2020

View full text Add to dashboard Cite

The effect of the addition of Gadolinium oxide (Gd2O3) up to 10 wt.% in bauxite was studied and its thermal behavior compared with pure bauxite. The incorporation of Gd2O3 is of technological interest for the design of smart traceable ceramic proppants used for unconventional gas and oil well stimulation. These high macroscopic neutron capture cross section proppants are used to obtain relevant information, such as the location and height of the created hydraulic fractures, through a neutron based detection technology. The study comprised a set of thermal and sintering behavior analyses up to 1500 ?C of mixtures up to 10 wt.% addition of Gd2O3. The developed texture and microstructure was also assessed. A simple mechanical characterization was performed as well. Fully-dense pore-free microstructures were developed, with alumina and mullite as the main crystalline phases. Gadolinium secondary and ternary alumino-silicate phases were also observed after thermal treatment. These present a needle morphology that might result in reinforcement mechanisms. No important glassy phase was detected; although sintering was enhanced, the Gd2O3 oxide main role was found to be as a sintering aid rather than a strict flux agent. The mechanical behavior remained fragile with the rare oxide addition. In fact, the mechanical resistance increased up to 20 wt.% for the 10 wt.% added sample. The oxide addition together with the bauxite dehydroxilation mass loss resulted in materials with up to 1.5 x 105 (c.u.) macroscopic neutron capture cross section materials. The obtained results permit to define design strategies of high macroscopic neutron capture ceramic materials for wellbore and developed fractures description.

show abstract

Boric acid (H3BO3) as flux agent of clay-based ceramics, B2O3 effect in clay thermal behavior and resultant ceramics properties

Hernández

Violini

Serra

et al. 2019

J Therm Anal Calorim

View full text Add to dashboard Cite

Ceramic materials were satisfactorily processed through a dry scalable process from binary clay-boric acid (H 3 BO 3 ) mixtures. Relevant thermal parameters were established by a multitechnique approach that included thermogravimetric, differential thermal analysis, dilatometric analysis and structural and microstructural characterization of fired samples. Both clay and boric acid thermal processes were described and correlated. The experimental textural properties evidenced a porosity decrease with sintering temperature and acid addition in the 1100-1300 °C range. The amount of glass was strongly increased by the boron oxide incorporation, confirming its fluxing capacity. X-ray diffraction, supplemented by Rietveld-Le Bail refinement, verified the presence and thermal evolution of crystalline and glassy phases. The observed microstructure was similar to other clay-based ceramics, with quartz, cristobalite and mullite grains imbibed in the silicabased glassy phase. The observed mullite phase was actually a boron mullite solid solution. Boric acid was confirmed as an adequate boron oxide source. The present study gives information for further clay-based materials design with boron oxide as fluxing agent. The dry route hypothesis was confirmed. Both formulation and firing programs can be optimized. High boron addition (5 mass%) is not recommended due to the observed partial rehydration.

show abstract

Ceramic behavior of ball clay with gadolinium oxide (Gd 2 O 3 ) addition

Cited by 18 publications

References 41 publications

Detectability of smart proppants traced with gadolinium and samarium in the Vaca Muerta formation

Detectability of smart proppants traced with gadolinium and samarium in the Vaca Muerta formation

High macroscopic neutron capture cross section ceramics based on bauxite and Gd2O3

Boric acid (H3BO3) as flux agent of clay-based ceramics, B2O3 effect in clay thermal behavior and resultant ceramics properties

Contact Info

Product

Resources

About