A survey on techniques for improving Phase Change Memory (PCM) lifetime

Mohseni, Milad; Novin, Ahmad Habibized

doi:10.1016/j.sysarc.2023.103008

Cited by 9 publications

(3 citation statements)

References 84 publications

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“…The denaturation of hydrated salt PCMs is mainly due to the loss of crystal water, while the denaturation of organic PCMs is mainly caused by chemical factors such as oxidation. [ 62 ] Denaturation limits the long‐term use of PCMs. To enhance the durability of PCMs, the required substances are identical to those used for addressing phase separation.…”

Section: Pcms and Lhtes Technologymentioning

confidence: 99%

Recent Advances in Photovoltaic and Photovoltaic Thermal Technologies of Integrated Phase‐Change Materials: A Review

Fang,

Zhang,

Liu

et al. 2024

Solar RRL

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Photovoltaic (PV) cells convert solar energy into electricity is currently the cleanest and most economical way to generate electricity. Nevertheless, just a portion of the solar power can be transformed into electrical energy, while the remaining portion is converted into heat, leading to an increase in the temperature of the PV cells. The rise in temperature will not only cause a decrease in the electrical efficiency of PV cells, but it may also impact their lifespan. By placing phase change materials (PCMs) on the back of the PV cells, it is possible to decrease the temperature increase and enhance the electrical efficiency. The heat collected by PCMs can also be taken away using liquid cooling and put to use. In this paper, the classification, performance evaluation and composite modification technology of PCMs are introduced in detail. The practical application requirements of PCMs in thermal management of PV cells are discussed, and some new ideas of applying PCMs to PV cells are prospected. Moreover, the prior investigations regarding the incorporation of PCMs with PV systems and PV/T systems have also been compiled, encompassing the various research perspectives and methodologies employed. In addition, the possible development direction in the future is prospected.This article is protected by copyright. All rights reserved.

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Section: Pcms and Lhtes Technologymentioning

confidence: 99%

Recent Advances in Photovoltaic and Photovoltaic Thermal Technologies of Integrated Phase‐Change Materials: A Review

Fang,

Zhang,

Liu

et al. 2024

Solar RRL

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“…When using DDR4, 128 links are replaced with 512 links, which results in a 32% performance improvement. Silicon-photonic links offer higher data rates due to their low latency and dense WDM [54].…”

Section: Comparison To Dram Systemsmentioning

confidence: 99%

OML-PCM: optical multi-level phase change memory architecture for embedded computing systems

Mohseni,

Novin

2023

Eng. Res. Express

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Unlike Dynamic Random Access Memory (DRAM), Phase Change Memory (PCM) offers higher density, longer data retention, and improved scalability because of its non-volatility and low leakage power. However, Electrically-Addressable PCM (EPCM) has a higher dynamic power and long latency than DRAM. To address these issues, scientists have developed Optically-Addressable PCM (OPCM), which uses 5-level cells instead of 2-level cells in EPCM. A silicon photonic link allows optical signals to reach OPCM cells at a high speed. Hence, OPCM can achieve a higher density while maintaining better performance at multi-level cells and consuming less power per access. However, OPCM is not suitable for general use since the photonic links do not provide an electrical interface to the processor. The aim of this paper is to present a hybrid OPCM architecture based on the use of novel multi-bank clusters with distinctive properties. Electrical-Optical-Electrical conversion (EOE) allows OPCM cells to be randomly accessed by using DRAM-like circuitry. The proposed hybrid design with multi-core processing and OPCM achieves a 2.13x speedup over previous approaches while consuming less Central Processing Unit (CPU) power. It is important to note that the proposed design offers 97 units fewer power-consistent bits than EPCM. In addition, the proposed architecture provides comparable performance and power to DDR4, as well as improved bandwidth density, space efficiency, and versatility. The Gem5 simulator was used to evaluate the design. Based on the outcomes of the analysis, the proposed architecture offers 2.08x and 2.14x better evaluations and density performance than EPCM. Furthermore, the execution time has been reduced by 2.13x, the analysis time by 1.23x, and the composition time by 4.60%.

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“…The stir casting technique enables the homogeneous distribution of reinforcement inside the base material, while also dispersing any agglomerations and minimizing the presence of crack-like flows. These factors have a significant impact on the physical and mechanical properties of the resulting composites, [5][6][7][8][9][10][11][12][13][14][15]. In a work conducted with Tashtoush et al, [16], it was shown that the hardness of Al/Gr composites reduced as the percentage of Gr reinforcement heightened.…”

Section: Introductionmentioning

confidence: 99%

MECHANICAL AND TRIBOLOGICAL CHARACTERISTICS OF STIR-CASTING Al2O3-SiC-Gr/Al6063 HYBRID COMPOSITE

Hewidy,

Sabry

2024

Journal of the Egyptian Society of Tribology

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The mechanical characteristics of composite materials play a crucial role in advancing technology. The present investigation employed the stir-casting method to produce hybrid aluminum matrix composites. Silicon carbide and aluminum oxide were selected as reinforcements in order to improve mechanical performance. Aluminum matrix composites (AMCs) were synthesized through the implementation of the stir-casting technique, incorporating varying volume percentages of aluminum oxide (10%, 15%, and 20%) with a consistent volume fraction of silicon carbide (15%) ang 10% graphite(G). The constructed AMCs were subjected to testing in order to evaluate their tensile strength (UTS), hardness (VHN), and wear rate (WR%). The wear rate was quantified across weights (10 N, 15 N, 20 N, and 25 N) and sliding velocities (0.3 m/s, 0.6 m/s, 0.9 m/s, and 1.3 m/s). In this study, a comparison was made between the mechanical characteristics of the manufactured aluminium matrix composites (AMCs) and those of the Al6063 alloy. The work outcomes indicated that the incorporation of silicon carbide and aluminium oxide resulted in a critical reinforcement of both the tensile strength and hardness properties. The tensile strength exhibited a notable rise, rising from an initial value of 590 MPa to a final value of 900 MPa. Similarly, the hardness of the material experienced an upward trend, ascending from an initial measurement of 70VHN to a final measurement of 90VHN. The wear rate exhibited a positive correlation with the magnitude of the applied load. Nevertheless, the variation in sliding velocity yielded distinct consequences. The velocity exhibited a quick increase until it attained a peak value of 0.9 m/s, then undergoing a sharp decline. KEYWORDS Aluminium matrix composites, aluminium oxide, and silicon carbide reinforcement, stir casting, wear testing.

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A survey on techniques for improving Phase Change Memory (PCM) lifetime

Cited by 9 publications

References 84 publications

Recent Advances in Photovoltaic and Photovoltaic Thermal Technologies of Integrated Phase‐Change Materials: A Review

Recent Advances in Photovoltaic and Photovoltaic Thermal Technologies of Integrated Phase‐Change Materials: A Review

OML-PCM: optical multi-level phase change memory architecture for embedded computing systems

MECHANICAL AND TRIBOLOGICAL CHARACTERISTICS OF STIR-CASTING Al2O3-SiC-Gr/Al6063 HYBRID COMPOSITE

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