Optical and mechanical properties of compaction and slip cast processed transparent polycrystalline spinel ceramics

Ramavath, Pandu; Biswas, Papiya; Rajeswari, Kotikalapudi; Suresh, M. Buchi; Johnson, Roy; Padmanabham, G.; Kumbhar, Chandrashekhar S.; Chongdar, T.K.; Gokhale, N.M.

doi:10.1016/j.ceramint.2013.10.149

Cited by 53 publications

(3 citation statements)

References 18 publications

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“…Spray drying is used as a controllable, continuous process to generate solid nano and microparticles from solution for various applications from food additives to fuel cells to ceramics to pharmaceuticals (Eldridge J.A. et al, 2014;Ramavath P. et al, 2014;Santana L.P. et al, 2008;Ziaee A. et al, 2017). Its main pharmaceutical application is manufacturing amorphous particles from an otherwise water insoluble API for use in solid dosage forms, i.e.…”

Section: Facile Generation Of Mof Aerosols Via Spray Dryingmentioning

confidence: 99%

Consideration of Metal Organic Frameworks for Respiratory Delivery

Stewart

Luz

Mortensen

2021

KONA

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Metal organic frameworks (MOFs) have garnered increased attention over the past 20 years. Due to their porosity, high surface area, and nearly limitless customization and tunability MOFs have been designed for applications ranging from gas storage and separation to catalysis to sensing to biomedical engineering. Within the latter category, MOFs offer an appealing function for drug delivery as they can be loaded with multiple therapeutic moieties tailored to target specific disorders with triggered and controlled release characteristics. However, there is an unmet need to assess their viability for pulmonary treatment via inhalation. Targeting pulmonary disorders including infectious diseases by delivering medication directly to the lungs attacks the primary site of infection rather than relying on systemic distribution. The inherent advantage of this strategy is maximizing local lung concentrations of the drug. An introduction to inhaled therapies is provided here as a preamble to a brief summary of the current development state of MOF drug delivery systems. This review is intended to highlight the relative disparity between research toward MOFs as pulmonary drug delivery vehicles compared to other delivery platforms. Prospective biomedical applications for inhalable MOFs are also discussed.

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Section: Facile Generation Of Mof Aerosols Via Spray Dryingmentioning

confidence: 99%

Consideration of Metal Organic Frameworks for Respiratory Delivery

Stewart

Luz

Mortensen

2021

KONA

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“…This distance is a layer the similar double layer which has surrounded particle. This distance is called hydrodynamic distance [36,37]. Figure 9 shows the rheological behavior of suspensions containing 83% wt.…”

Section: Rheological Behavior Of Suspensionsmentioning

confidence: 99%

Optimizing the gel-casting parameters in synthesis of MgAl2O4 spinel

Shahbazi

Shokrollahi

Alhaji

2017

Journal of Alloys and Compounds

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In this paper MgAl 2 O 4 spinel powder with average particle size of 90 nm, purity of 99.99%, with stoichiometric ratio α-Al 2 O 3 and MgO and only 0.8 %wt. LiF add-on was solid-state synthesized at a temperature of 1300˚C and used in gel suspension with 83% solid load. Using the optimal value of ISOBAM (0.9 %wt.) as both dispersion and gelation factors led to a significant increase in the relative density of green body from 48.5% to 62.2%. Relative density increased after sintering at 1550˚C for 1h from 78% to 99.6% and pore size (40 nm) reduced to half the size of powder particles. Also, it resulted in appropriate pore distribution, because of the low number and value of the add-on in the gel system, and also optimization and preparation of nanopowders, as well as preparation and manufacture of suspension. XRD, BET, ICP, FESEM, FTIR analyses were done for synthesis and preparation of powder. Viscometery, Rheometery, Porosimetery, TG-DSC, Zeta potential, and sediment deposition analyses were done in order to optimize the parameters of the casting.

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“…Slip casting process consists basically in pouring a colloidal suspension, also named slip, in a dry plaster mold, which absorbs water. Such process occurs because of the capillary action in the mold, which concentrates and coagulates the slip particles next to the mold surface [7][8][9]. This process can be performed by using two methods: in the first one the drain casting consists of pouring the slip into a mold.…”

Section: Introductionmentioning

confidence: 99%

Porous Ceramics Obtained by Slip/Starch Casting Consolidation Method (SSCC)

Fernandes

Campos

Santana³

et al. 2016

MSF

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Slip/starch casting consolidation (SSCC) is a technique for obtaining porous ceramics, which joins the forming process by starch consolidation with the slip casting method. In this work, a slip which contains ceramic powders, starch and dispersant, is poured into a porous mold and is taken to an oven so that the gelling process occurs. After sintering, it is noticed that the ceramics show different characteristics from the ones obtained exclusively by slip casting or by starch consolidation. Alumina ceramics were produced by using the three methods presented in this work. The ceramics were characterized by apparent porosity, mechanical resistance and scanning electron microscopy. The ceramics produced by SSCC presented the highest mechanical resistance value (289 MPa), while the ones produced by starch consolidation and slip casting presented values of 126 MPa and 191 MPa, respectively.

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Optical and mechanical properties of compaction and slip cast processed transparent polycrystalline spinel ceramics

Cited by 53 publications

References 18 publications

Consideration of Metal Organic Frameworks for Respiratory Delivery

Consideration of Metal Organic Frameworks for Respiratory Delivery

Optimizing the gel-casting parameters in synthesis of MgAl2O4 spinel

Porous Ceramics Obtained by Slip/Starch Casting Consolidation Method (SSCC)

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