Laser Sintering of SiO<sub>2</sub>Powder Compacts

Толочко, Н. К.; Аршинов, М. К.; Аршинов, К. И.; Ragulya, A. V.

doi:10.1023/b:pmmc.0000028265.39058.68

Cited by 6 publications

(5 citation statements)

References 6 publications

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“…As shown in Figure 1b; and Figure S2, Supporting Information, the white pellet became translucent after CIP (40 MPa, 40 s), and then turned fully transparent and uniform after the UHS process. The UHS method can achieve 1–3 orders of magnitude faster sintering (Figure 1c) compared to other techniques such as gel‐casting and sintering, [ 12 ] conventional furnace sintering, [ 10,11,32,33 ] SPS, [ 13–16 ] laser sintering, [ 22 ] and FS. [ 20 ] Compared with other sintering methods, our UHS technique has multiple advantages for glass fabrication.…”

Section: Resultsmentioning

confidence: 99%

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Rapid Pressureless Sintering of Glasses

Lin

Zhao

Wang

et al. 2022

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Silica glasses have wide applications in industrial fields due to their extraordinary properties, such as high transparency, low thermal expansion coefficient, and high hardness. However, current methods of fabricating silica glass generally require long thermal treatment time (up to hours) and complex setups, leading to high cost and slow manufacturing speed. Herein, to obtain high‐quality glasses using a facile and rapid method, an ultrafast high‐temperature sintering (UHS) technique is reported that requires no additional pressure. Using UHS, silica precursors can be densified in seconds due to the large heating rate (up to 102 K s−1) of closely placed carbon heaters. The typical sintering time is as short as ≈10 s, ≈1–3 orders of magnitude faster than other methods. The sintered glasses exhibit relative densities of > 98% and high visible transmittances of ≈90%. The powder‐based sintering process also allows rapid doping of metal ions to fabricate colored glasses. The UHS is further extended to sinter other functional glasses such as indium tin oxide (ITO)‐doped silica glass, and other transparent ceramics such as Gd‐doped yttrium aluminum garnet. This study demonstrates an UHS proof‐of‐concept for the rapid fabrication of high‐quality glass and opens an avenue toward rapid discovery of transparent materials.

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Section: Resultsmentioning

confidence: 99%

“…However, the sintering rate is affected by the output power, scanning speed (e.g., 1 mm s −1 ), and spot size (e.g., a diameter of ≈1 mm), [ 21 ] and the sintered porous structure results in low transparency. [ 22 ]…”

Section: Introductionmentioning

confidence: 99%

Rapid Pressureless Sintering of Glasses

Lin

Zhao

Wang

et al. 2022

Small

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“…However, the method is susceptible to the formation of porous structures during preparation, which can compromise the transparency of the glass. 121…”

Section: Cjh For the Preparation Of Inorganic Non-metallic Materialsmentioning

confidence: 99%

“…7a demonstrates that after CIP (40 MPa, 40 s), the white pellets became translucent and then completely transparent and homogeneous after the UHS process. Compared to other techniques such as gel casting and sintering, spark plasma sintering (SPS), 119 laser sintering, 121 and field sintering (FS), 120 the UHS method can achieve sintering 1–3 orders of magnitude faster (Fig. 7b).…”

Section: Cjh For the Preparation Of Inorganic Non-metallic Materialsmentioning

confidence: 99%

Carbon carrier-based rapid Joule heating technology: a review on the preparation and applications of functional nanomaterials

Ding,

He,

et al. 2024

Nanoscale

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“…Owing to its high temperature gradients, high heating rates, superficial quickness of the process and the absorption of energy, the ceramics sintered using a laser can exhibit different characteristics when compared to the ceramics sintered using the conventional method. In recent years, some authors have reported and compared the properties of laser-sintered ceramics with the conventional method in materials such as SnO 2 , Al 2 O 3 -WO 3 , Ta [7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

TiO2 ceramics prepared using Pechini synthesis and laser sintering

Cordeiro

Ferreira

2018

PAC

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Nowadays, the laser sintering process has attracted the attention of researchers owing to advantages such as the possibility of using very high heating and cooling rates and the possibility of sintering materials with high melting point. TiO 2 ceramics was produced from powders synthesized using the polymer precursor method. The purpose of this paper was the sintering of TiO 2 samples using an unconventional method with CO 2 laser as the heating source. Techniques such as differential thermal analysis, thermogravimetry, X-ray diffraction, scanning electron microscopy, and impedance spectroscopy were used for the sample characterizations. The sintering time was extremely fast, around 3 minutes. Moreover, the samples showed lower resistivity when compared to those sintered conventionally.

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Laser Sintering of SiO₂Powder Compacts

Cited by 6 publications

References 6 publications

Rapid Pressureless Sintering of Glasses

Rapid Pressureless Sintering of Glasses

Carbon carrier-based rapid Joule heating technology: a review on the preparation and applications of functional nanomaterials

TiO2 ceramics prepared using Pechini synthesis and laser sintering

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Laser Sintering of SiO2Powder Compacts

Cited by 6 publications

References 6 publications

Rapid Pressureless Sintering of Glasses

Rapid Pressureless Sintering of Glasses

Carbon carrier-based rapid Joule heating technology: a review on the preparation and applications of functional nanomaterials

TiO2 ceramics prepared using Pechini synthesis and laser sintering

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Product

Resources

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Laser Sintering of SiO₂Powder Compacts