Sintered regolith - Revision history

Michel Lamontagne at 19:03, 5 October 2022

2022-10-05T19:03:18Z

Michel Lamontagne: /* Use */

2022-10-05T19:00:09Z

Use

Michel Lamontagne: /* Methods */

2022-10-05T18:55:22Z

Methods

Kee.nethery: /* Furnace Sintering */

2021-11-16T20:35:29Z

Furnace Sintering

Michel Lamontagne: /* Furnace Sintering */

2019-04-21T00:17:57Z

Furnace Sintering

Michel Lamontagne at 00:10, 21 April 2019

2019-04-21T00:10:17Z

Michel Lamontagne at 00:05, 21 April 2019

2019-04-21T00:05:43Z

Pb: /* Methods */

2018-12-20T05:33:35Z

Methods

Jburk at 21:57, 18 December 2018

2018-12-18T21:57:12Z

Bartacus: /* Rapid Prototyping */

2017-12-11T16:29:19Z

Rapid Prototyping

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 '''Sintered regolith''' has been proposed as a construction material on the Moon. This technology might be extended to Mars. [[Sintering]] is the fusion of mineral particles through the application of heat. The particles are heated just enough to induce fusion, but not enough to fully melt.
-Ceramic objects are produced by sintering natural and artificial ceramics, held in place by binders that are evaporated in the sintering process.  However sintering can be done directly without water.  As the moon is dry water binders may be problematic.  On Mars, water should be readily available and ceramic production may be possible by methods similar to those used on Earth.
+Ceramic objects are produced by sintering natural and artificial ceramics, held in place by binders that are evaporated in the sintering process.  However, sintering can be done directly without water or binders.  As the Moon is dry water binders may be problematic.  On Mars, water should be readily available and ceramic production may be possible by methods similar to those used on Earth.
 ==Methods==
@@ Line 9: / Line 9: @@
 *'''Solar Sintering'''.  Solar energy can be focused on the regolith to achieve the 1300 degree C temperature required for sintering.
 *'''Microwave Sintering'''.  A microwave can be used to heat regolith.
-*'''Furnace Sintering'''.  Large kilns are used to heat the [[regolith]] as it is held in a mould.
+*'''Furnace Sintering'''.  Large kilns are used to heat the [[regolith]] as it is held in a mold.
-**Furnace sintering is the classic method for producing ceramic goods on Earth.  However, these are held together with binders that are evaporated during the sintering process.
+**Furnace sintering is the classic method for producing ceramic goods on Earth.  The ceramics are held together with binders that are evaporated during the sintering process.
-**On Mars, binders don't need to be added to the regolith. "Here we demonstrate that by applying exclusively Martian resources a processing route involving suspensions of mineral particles called slurries or slips can be established for manufacturing ceramics on Mars. We developed water-based slurries without the use of additives that had a 51 wt. % solid load resembling commercial porcelain slurries in respect to the particle size distribution and rheological properties. These slurries were used to slip cast discs, rings and vases that were sintered at temperatures between 1000 and 1130 °C using different sintering schedules, the latter were set-up according the results of hot-stage microscopic characterization. The microstructure, porosity and the mechanical properties were characterized by SEM, X-ray computer tomography and Weibull analysis. Our wet processing of minerals yields ceramics with complex shapes that show similar mechanical properties to porcelain and could serve as a technology for future Mars colonization. The best quality parts with completely vitrificated matrix supporting a few idiomorphic crystals are obtained at 1130 °C with 10 h dwell time with volume and linear shrinkage as much as ~62% and ~17% and a characteristic compressive strength of 51 MPa."<ref>David Karl, Franz Kamutzki, Andrea Zocca, Oliver Goerke, Jens Guenster, Aleksander Gurlo (2018) Towards the colonization of Mars by in-situ resource utilization: Slip cast ceramics from Martian soil simulant. PLoS ONE 13(10): e0204025. https://doi.org/10.1371/journal.pone.0204025</ref>
+**On Mars, binders may not need to be added to the regolith: "Here we demonstrate that by applying exclusively Martian resources a processing route involving suspensions of mineral particles called slurries or slips can be established for manufacturing ceramics on Mars. We developed water-based slurries without the use of additives that had a 51 wt. % solid load resembling commercial porcelain slurries in respect to the particle size distribution and rheological properties. These slurries were used to slip cast discs, rings and vases that were sintered at temperatures between 1000 and 1130 °C using different sintering schedules, the latter were set-up according the results of hot-stage microscopic characterization. The microstructure, porosity and the mechanical properties were characterized by SEM, X-ray computer tomography and Weibull analysis. Our wet processing of minerals yields ceramics with complex shapes that show similar mechanical properties to porcelain and could serve as a technology for future Mars colonization. The best quality parts with completely vitrificated matrix supporting a few idiomorphic crystals are obtained at 1130 °C with 10 h dwell time with volume and linear shrinkage as much as ~62% and ~17% and a characteristic compressive strength of 51 MPa."<ref>David Karl, Franz Kamutzki, Andrea Zocca, Oliver Goerke, Jens Guenster, Aleksander Gurlo (2018) Towards the colonization of Mars by in-situ resource utilization: Slip cast ceramics from Martian soil simulant. PLoS ONE 13(10): e0204025. https://doi.org/10.1371/journal.pone.0204025</ref>
 == Materials ==

@@ Line 17: / Line 17: @@
 ==Use==
-===Construction===
+*'''Construction'''.  Sintered Regolith blocks are a possible construction material. Further testing is needed to determine the structural characteristics of such blocks. Possibilities include [[Universal bricks]] and [[arch segments]].
-Sintered Regolith blocks are a possible construction material. Further testing is needed to determine the structural characteristics of such blocks. Possibilities include [[Universal bricks]] and [[arch segments]].
+*'''Rapid Prototyping'''.  Laser sintering and additive manufacturing can produce custom items. Laser sintering comprises thin, sequential layers of media are laid down, and sintered together to form the item. Additive manufacturing consists of building up products layer by layer in a semi-molten state until they set into stabilize in solid form.  3D printing is additive manufacturing.
 ==See Also==

@@ Line 6: / Line 6: @@
 ==Methods==
-===Laser Sintering===
+*'''Laser Sintering'''.   Laser sintering is used in [[rapid prototyping]] applications.
-Laser sintering is used in [[rapid prototyping]] applications.
+*'''Solar Sintering'''.  Solar energy can be focused on the regolith to achieve the 1300 degree C temperature required for sintering.
+*'''Microwave Sintering'''.  A microwave can be used to heat regolith.
-===Solar Sintering===
+*'''Furnace Sintering'''.  Large kilns are used to heat the [[regolith]] as it is held in a mould.
-Solar energy can be focused on the regolith to achieve the 1300 degree C temperature required for sintering.
+**Furnace sintering is the classic method for producing ceramic goods on Earth.  However, these are held together with binders that are evaporated during the sintering process.
+**On Mars, binders don't need to be added to the regolith. "Here we demonstrate that by applying exclusively Martian resources a processing route involving suspensions of mineral particles called slurries or slips can be established for manufacturing ceramics on Mars. We developed water-based slurries without the use of additives that had a 51 wt. % solid load resembling commercial porcelain slurries in respect to the particle size distribution and rheological properties. These slurries were used to slip cast discs, rings and vases that were sintered at temperatures between 1000 and 1130 °C using different sintering schedules, the latter were set-up according the results of hot-stage microscopic characterization. The microstructure, porosity and the mechanical properties were characterized by SEM, X-ray computer tomography and Weibull analysis. Our wet processing of minerals yields ceramics with complex shapes that show similar mechanical properties to porcelain and could serve as a technology for future Mars colonization. The best quality parts with completely vitrificated matrix supporting a few idiomorphic crystals are obtained at 1130 °C with 10 h dwell time with volume and linear shrinkage as much as ~62% and ~17% and a characteristic compressive strength of 51 MPa."<ref>David Karl, Franz Kamutzki, Andrea Zocca, Oliver Goerke, Jens Guenster, Aleksander Gurlo (2018) Towards the colonization of Mars by in-situ resource utilization: Slip cast ceramics from Martian soil simulant. PLoS ONE 13(10): e0204025. https://doi.org/10.1371/journal.pone.0204025</ref>
 == Materials ==

@@ Line 18: / Line 18: @@
 Large kilns are used to heat the [[regolith]] as it is held in a mould.
 Furnace sintering is the classic method for producing ceramic goods on Earth.  However, these are held together with binders that are evaporated during the sintering process.
 == Materials ==

@@ Line 17: / Line 17: @@
 ===Furnace Sintering===
 Large kilns are used to heat the [[regolith]] as it is held in a mould.
 ==Use==

@@ Line 1: / Line 1: @@
 [[Image:UniversalBricks02.jpg|thumb|right|220px|Construction elements from sintered regolith]]
-'''Sintered regolith''' has been proposed as a construction material on the Moon. This technology might be extended to Mars. [[Sintering]] is the fusion of mineral particles through the application of heat. The particles are heated just enough to induce fusion, but not enough to fully melt.  Ceramic objects are produced by sintering natural and artificial ceramics.
+'''Sintered regolith''' has been proposed as a construction material on the Moon. This technology might be extended to Mars. [[Sintering]] is the fusion of mineral particles through the application of heat. The particles are heated just enough to induce fusion, but not enough to fully melt.
 ==Methods==

← Older revision		Revision as of 21:57, 18 December 2018
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	* [[lunarp:Sintered regolith\|Sintered regolith on Lunarpedia<sup><b>lunarp</b></sup>]].		* [[lunarp:Sintered regolith\|Sintered regolith on Lunarpedia<sup><b>lunarp</b></sup>]].

−	[[Category:~~Lo-tech~~]]	+	[[Category:Synthesis]]